Mailing questions: how to send UniSender letters
During the last session of questions to UniSender , we answered most of them directly in the comments, but one topic seemed interesting enough to us to take it to a separate post. So, we present to your attention a story about what software and methods of mailing lists UniSender uses in its daily work.
Almost the same doggie works on UniSender
Unisender generates letters independently, in accordance with all RFC guidelines for writing headings (not forgetting the Google List-Unsubscribe ), as well as signing with DKIM and SPF.
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Letters can be created in different formats (html, text), embedded images can be added to them and files can be attached.
MTAs (mail transport agents) are doing this - writing their own email client and reinventing the UniSender bike, instead, the service uses the time-tested and popular Exim, as well as the most powerful email client PowerMTA, which sends out more than 1 million email messages per hour. from each server (according to test results for messages of 10-20 kb in size). Mailing leaves simultaneously from two dozens of servers, according to which it is scattered according to a clever formula for the most rapid and high-quality delivery without delay.
For the analysis of discoveries, the standard practice is to insert an inconspicuous picture into the letter text, by loading which will determine whether the message is opened by the subscriber. This method is not 100% accurate, as many mail programs and mail services by default cut external images. However, for example, mail.ru, which is used by half of Russians, shows pictures by default.
To count the transitions on the links UniSender substitutes links to your redirect domain. Links are encrypted by inserting some service information into them. There is already 100% accuracy of statistics.
For the analysis of delivery, non-delivery and spam complaints, Uni uses the standard features of the SMTP protocol and provided by Western postal services Feedback Loop (FBL) - AOL, Yahoo, Hotmail / MSN / Live. Of the Russian providers Mail.ru, literally the other day, the first one added such functionality, therefore, in the very near future, UniSender will begin to process complaints about spam and from mail users.
Postmaster@mail.ru gives a general picture of the quality of delivery to their servers. it looks like if without numbers, it’s something like this (green - delivered to Inbox, yellow - to spam, red - not delivered at all):
The so-called "hard-bani", that is, failures of mail servers to receive mail, are processed independently and output statistics with decoding: for what reason the message was not delivered (for example, the box was full, server failed, the domain does not exist, etc. .):
We continue to answer your questions. The theory and practice of selling newsletters, how to make the right marketing letter, increasing the loyalty of subscribers - ask us in the comments, we will answer all the questions. With time. Thanks for attention :)
Almost the same doggie works on UniSender
Letter generation
Unisender generates letters independently, in accordance with all RFC guidelines for writing headings (not forgetting the Google List-Unsubscribe ), as well as signing with DKIM and SPF.
')
Letters can be created in different formats (html, text), embedded images can be added to them and files can be attached.
Sending mhu
MTAs (mail transport agents) are doing this - writing their own email client and reinventing the UniSender bike, instead, the service uses the time-tested and popular Exim, as well as the most powerful email client PowerMTA, which sends out more than 1 million email messages per hour. from each server (according to test results for messages of 10-20 kb in size). Mailing leaves simultaneously from two dozens of servers, according to which it is scattered according to a clever formula for the most rapid and high-quality delivery without delay.
Analysis of the delivery / opening of letters
For the analysis of discoveries, the standard practice is to insert an inconspicuous picture into the letter text, by loading which will determine whether the message is opened by the subscriber. This method is not 100% accurate, as many mail programs and mail services by default cut external images. However, for example, mail.ru, which is used by half of Russians, shows pictures by default.
To count the transitions on the links UniSender substitutes links to your redirect domain. Links are encrypted by inserting some service information into them. There is already 100% accuracy of statistics.
For the analysis of delivery, non-delivery and spam complaints, Uni uses the standard features of the SMTP protocol and provided by Western postal services Feedback Loop (FBL) - AOL, Yahoo, Hotmail / MSN / Live. Of the Russian providers Mail.ru, literally the other day, the first one added such functionality, therefore, in the very near future, UniSender will begin to process complaints about spam and from mail users.
Postmaster@mail.ru gives a general picture of the quality of delivery to their servers. it looks like if without numbers, it’s something like this (green - delivered to Inbox, yellow - to spam, red - not delivered at all):
The so-called "hard-bani", that is, failures of mail servers to receive mail, are processed independently and output statistics with decoding: for what reason the message was not delivered (for example, the box was full, server failed, the domain does not exist, etc. .):
What else?
We continue to answer your questions. The theory and practice of selling newsletters, how to make the right marketing letter, increasing the loyalty of subscribers - ask us in the comments, we will answer all the questions. With time. Thanks for attention :)
Source: https://habr.com/ru/post/138092/
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