HowTo: DMARC
Recently had to deal with spamming php-script. The culprit was found and destroyed, the hole was closed ... There was a question with the blacklist. In particular, mail on Gmail (reject) has stopped reaching.
I decided to configure the mail “as it should” - SPF, DKIM and try to configure DMARC.
I will make a reservation right away - I did not even try to figure out the macros and did not configure aspf / adkim (although I wrote about them).
Described in RFC7489 .
DMARC sets the policy for how to check incoming mail in this domain and what to do if emails do not pass SPF or DKIM authentication. The picture shows at what stage DMARC comes into operation.
You can read the documentation and comprehend Zen, and you can configure the most basic policy - it is very easy to configure - an entry is added to the domain
I decided to configure the mail “as it should” - SPF, DKIM and try to configure DMARC.
I will make a reservation right away - I did not even try to figure out the macros and did not configure aspf / adkim (although I wrote about them).
What is DMARC?
Described in RFC7489 .
DMARC sets the policy for how to check incoming mail in this domain and what to do if emails do not pass SPF or DKIM authentication. The picture shows at what stage DMARC comes into operation.
DMARC setup
You can read the documentation and comprehend Zen, and you can configure the most basic policy - it is very easy to configure - an entry is added to the domain
Basic DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , .
_dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :none - , ;quarantine - ;reject - .. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"sp - subdomain policy - policy;rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XMLMail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>ri - requested interval - , , 86400. .:
- ;
- (
@domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );- (
postmaster@domain.tld )., , , . , , ...
DMARC
DMARC ,
quarantine reject , :pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .aspf - alignment mode for SPF - SPF:r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";s - strict - RFC5321.MailFrom RFC5322.From .adkim - alignment mode for DKIM - DKIM, :r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , . _dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , .
_dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :none - , ;quarantine - ;reject - .. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"sp - subdomain policy - policy;rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XMLMail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>ri - requested interval - , , 86400. .:
- ;
- (
@domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );- (
postmaster@domain.tld )., , , . , , ...
DMARC
DMARC ,
quarantine reject , :pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .aspf - alignment mode for SPF - SPF:r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";s - strict - RFC5321.MailFrom RFC5322.From .adkim - alignment mode for DKIM - DKIM, :r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , .
_dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , ._dmarc.domain.tld IN TXT "v=DMARC1; p=;"
p - policy - , :
none - , ;
quarantine - ;
reject - .
. , :
DMARC
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
sp - subdomain policy - policy;
rua - reporting URI for aggregate reports - mailto:mbox@domain.tld XML
Mail.ru DMARC:
<feedback> <report_metadata> <date_range> <begin>1361304000</begin> <end>1361390400</end> </date_range> <email>dmarc_support@corp.mail.ru</email> <extra_contact_info>http://corp.mail.ru/en</extra_contact_info> <org_name>Mail.Ru</org_name> <report_id>1361304000874948</report_id> </report_metadata> <policy_published> <adkim>r</adkim> <aspf>r</aspf> <domain>adan.ru</domain> <p>none</p> <pct>100</pct> <sp>none</sp> </policy_published> <record> <auth_results> <dkim> <domain>adan.ru</domain> <result>pass</result> </dkim> <spf> <domain>adan.ru</domain> <result>pass</result> </spf> </auth_results> <identifiers> <header_from>adan.ru</header_from> </identifiers> <row> <count>20</count> <policy_evaluated> <disposition>none</disposition> <dkim>pass</dkim> <spf>pass</spf> </policy_evaluated> <source_ip>176.9.9.172</source_ip> </row> </record> </feedback>
ri - requested interval - , , 86400. .
:
- ;
- ( @domain.tld ) ( @srv1.domain.tld , @srv2.domain.tld );
- ( postmaster@domain.tld ).
, , , . , , ...
DMARC
DMARC , quarantine reject , :
pct - percentage - , , forensic report. , "v=DMARC1; p=quarantine; pct=50;" . pct=100 .
aspf - alignment mode for SPF - SPF:
r - relaxed - RFC5322.From SPF- ( , ). , , RFC5321.MailFrom, "some.sub.domain.tld", RFC5322.From - "mbox@domain.tld";
s - strict - RFC5321.MailFrom RFC5322.From .
adkim - alignment mode for DKIM - DKIM, :
r - relaxed - : RFC5322.From d= , - :
/ Organizational Domains RFC:
Organizational Domain:
The domain that was registered with a domain name registrar. In the absence of more accurate methods, heuristics are used to determine this, since it is not always the case that the registered domain name is simply a top-level DNS domain plus one component (eg, "example.com", where "com" is a top-level domain). The Organizational Domain is determined by applying the algorithm found in Section 3.2.
...
The Organizational Domain is determined using the following algorithm:
1. Acquire a "public suffix" list, ie, a list of DNS domain names reserved for registrations. Some country Top-Level Domains (TLDs) make specific registration requirements, eg, the United Kingdom places company registrations under ".co.uk"; other TLDs such as ".com" appear in the IANA registry of top-level DNS domains. A public suffix list is the union of all of these. Appendix A.6.1 contains some discussion about obtaining a public suffix list.
2. Break the subject DNS domain name into a set of "n" ordered labels. Number these labels from right to left; eg, for "example.com", "com" would be label 1 and "example" would be label 2.
3. Search the public suffix list for the name that matches the largest number of labels found in the subject DNS domain. Let that number be "x".
4. Construct a new DNS domain name using the name that matched from the public suffix list and prefixing to it the "x+1"th label from the subject domain. This new name is the Organizational Domain.
Thus, since "com" is an IANA-registered TLD, a subject domain of "abcdexample.com" would have an Organizational Domain of "example.com".
The process of determining a suffix is currently a heuristic one. No list is guaranteed to be accurate or current.
1. " ", publicsuffix.org
2, , . - sub.domain.tld #3 - sub , #2 - domain , #1 - tld .
3. , , .
4. +1 - .
:
info@a.sub.domain.tld
: tld - #1, domain - #2, sub - #3, a - #4
tld , =1
2 - domain.tld
s - strict - FQDN d= RFC5322.From .
ruf - reporting URI for forensic reports - . (, Gmail ).
fo - failure report options - forensic report:
0 - - ;
1 - ;
d - DKIM;
s - SPF.
DMARC?
:
DMARC, :
_dmarc.domain.tld IN TXT "v=DMARC1; p=none; sp=none; rua=mailto:postmaster@domain.tld"
- . quarantine , 5% ( pct=5 ) , , 10-20-35-50-75-100%, reject .
SPF/DKIM ruf=mailto:your-mbox@domain.tld fo=1 .
, , - , .')
Source: https://habr.com/ru/post/253705/
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