How to collect statistics on adding a message to spam?

Question

Mail server

Hello, I am sending emails through my own smtp server.

How to collect statuses when the mail considers my message as spam and when the addressee marks the letter as spam?

Answer 1

In general, no way.
You can do something if:
1. The receiving SMTP server gave an error immediately upon sending - such as spam, go fuck yourself.
2. Many mailers, when sending a letter to spam, make (or offer to make) an attempt to unsubscribe, for this you need the List-unsubscribe header - process requests for it already.
Oh yes, I forgot. You can connect to mailer services for senders, for example: postmaster.mail.ru, postoffice.yandex.ru - there will be statistics.

Answer 2

No way.
There is no feedback. And even if it was, it would have been blocked. The receiving server can do anything with the letter , including sending a false acknowledgment of acceptance (and actually deleting it) or sending a fake spam message (and actually accepting it). Or stupidly silently put it in a box that no one reads, in order to avoid the appearance of a dialogue of demons, when one writes to the other that there is no such user, and the second in response that this is actually your user.
And there was never any feedback on the actions of the user :)

Answer 3

Good afternoon!
There are two questions in one.
The first question is when the mail considers your letter to be spam.
In fact, the receiving server has three options - accept your letter in the inbox, send it to the spam folder (let's call this option Possibly spam) and kick it completely. If we take the largest mailers of the Runet, then Mile ru has all three options clearly visible in the postmaster

, Google will also have some data, but only for large mailings. Moreover, if your letters are not accepted at all, information often comes as to why this happened.
The second question is when the addressee considers your letter to be spam. If you write the rua operator in DMARC, then some of the servers will send letters with complaints to the mail specified in it. For Mile ru mail for abuse is registered in the postmaster (FBL). And for example, Yandex does not send such information for reasons of "why do spammers know who complains about them?"