Why doesn't DMARC pass?

Question

SMTP

I understand correctly that mta-my-mails.ru does not allow spf to be sent to adspromo.ru
Your message did not pass DMARC check
A DMARC DNS record was found for the domain _dmarc.mta-my-mails.ru:
"v=DMARC1; p=quarantine "
Test details:
mail-tester.com; dkim=pass (1024-bit key; unprotected) header.d=adspromo.ru [email protected] header.b=A/6TZi9Y; dkim-atps=neutral
mail-tester.com; dmarc=fail header.from=mta-my-mails.ru
mail-tester.com; dkim=pass (1024-bit key; unprotected) header.d=adspromo.ru [email protected] header.b=A/6TZi9Y; dkim-atps=neutral
From Domain: mta-my-mails.ru
DKIM Domain: adspromo.ru
here are the details.. https://www.mail-tester.com/web-y8ovo

Answer 1

DMARC passes if the letter contains SPF or DKIM authorization which is aligned with the domain in the sender's address (From:). The default align is the organizational domain match.
In your case, the organizational domain from the address From: mta-my-mails.ru, the organizational domain from DKIM adspromo.ru and the organizational domain in SPF adspromo.ru. Accordingly, neither DKIM nor SPF matches the From domain, so DMARC fails validation.
Those. you need to either change the sender address to @adspromo.ru or use DKIM/SPF of the mta-my-mails.ru domain (or at least DKIM).