Protect gmail from spam.
I apologize in advance, but I would like to slightly dilute the stream of slick press releases, and Google's eulogistic reviews, in this blog, with a little user experience.
Until recently, I was extremely positive towards Google (I won’t say “loved” because I don’t have the habit of falling in love with services). But quite a long time ago he upset me strongly and regularly with this:
If such a problem arose not with gmail, but, for example, with mail.ru - I would just send the one who opened the box to mail.ru (or any other service, mail.ru is taken solely for example and selected at random), open a box in any other normal place. And most would have done so.
And what should I do in this situation? I can’t and do not want to use an SMTP provider. First of all, I have a development machine, and mail applications are periodically written, and having qmail on my machine makes life easier. Secondly, my machine is enabled 24x7, it uses 2 ADSL connections to different providers, and when I have qmail, it is much easier for me to control the reception / sending of letters, the current queue, etc. Thirdly, as I said, I have two different providers, the default route is configured simultaneously through both, and when one problem my machine automatically switches to the other - so using someone’s SMTP server means being left without mail he has problems (and any ISP occasionally has problems, and not always through his fault and under his control). In addition, I have a static IP on one of ADSL, and when this channel works, mail goes through it - so this is not the case when you need to protect yourself from spammers using dynamic IP on ADSL. Well, and finally - I still have Hardened Gentoo, neatly tuned including. and in terms of security, which, as shown by my acquaintance with the admins of several ISPs, makes my machine much more secure than many of their servers. :)
')
Summarizing: we have a situation where Google refuses to accept mail from a specific machine that has a static IP, is well protected and has never sent spam. And without any reason. And - to my letters in support of Google there is no answer. Moreover, Google also has the audacity to tell me which SMTP servers to use and which not. And with all this, I am absolutely powerless, because gmail users will not want to change it to alternatives in the absolute majority of cases, unreasonably believing it to be “right” by default in any situation — that’s CAM Google!
So let's drink for the health of "very", damn it! :)
Update: The problem was solved with the help of masterbo , for which he thanks a lot !
Until recently, I was extremely positive towards Google (I won’t say “loved” because I don’t have the habit of falling in love with services). But quite a long time ago he upset me strongly and regularly with this:
Hi. This is the qmail-send program at powerman.asdfGroup.com.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
<SOMEBODY@gmail.com>:
72.14.215.114 failed after I sent the message.
Remote host said: 550-5.7.1 [85.90.198.1] The IP you're using to send email is not authorized
550-5.7.1 to send email directly to our servers. Please use
550 5.7.1 the SMTP relay at your service provider instead.
If such a problem arose not with gmail, but, for example, with mail.ru - I would just send the one who opened the box to mail.ru (or any other service, mail.ru is taken solely for example and selected at random), open a box in any other normal place. And most would have done so.
And what should I do in this situation? I can’t and do not want to use an SMTP provider. First of all, I have a development machine, and mail applications are periodically written, and having qmail on my machine makes life easier. Secondly, my machine is enabled 24x7, it uses 2 ADSL connections to different providers, and when I have qmail, it is much easier for me to control the reception / sending of letters, the current queue, etc. Thirdly, as I said, I have two different providers, the default route is configured simultaneously through both, and when one problem my machine automatically switches to the other - so using someone’s SMTP server means being left without mail he has problems (and any ISP occasionally has problems, and not always through his fault and under his control). In addition, I have a static IP on one of ADSL, and when this channel works, mail goes through it - so this is not the case when you need to protect yourself from spammers using dynamic IP on ADSL. Well, and finally - I still have Hardened Gentoo, neatly tuned including. and in terms of security, which, as shown by my acquaintance with the admins of several ISPs, makes my machine much more secure than many of their servers. :)
')
Summarizing: we have a situation where Google refuses to accept mail from a specific machine that has a static IP, is well protected and has never sent spam. And without any reason. And - to my letters in support of Google there is no answer. Moreover, Google also has the audacity to tell me which SMTP servers to use and which not. And with all this, I am absolutely powerless, because gmail users will not want to change it to alternatives in the absolute majority of cases, unreasonably believing it to be “right” by default in any situation — that’s CAM Google!
So let's drink for the health of "very", damn it! :)
Update: The problem was solved with the help of masterbo , for which he thanks a lot !
Source: https://habr.com/ru/post/14305/
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