New answers tagged

2 votes

Intermittent DKIM authentication failing

What would cause this [25% of those messages failing both authentication and alignment]... Failing authentication is obvious. DKIM signatures in emails don't validate. Failing DMARC alignments means ...
  • 91
3 votes

Does DMARC Add Value Beyond Reports?

DMARC is a way to publish your domain sending practices, and the policy you want to apply to unauthorized senders. In a nutshell, it is a way to stop forged email pretending to come from your domain. ...
  • 91
2 votes

How to handle duplicate DKIM selectors?

DKIM selectors are arbitrary strings. They're used to locate the corresponding public key on the DNS, and can virtually be anything that is valid as a DNS label. Having said that, selectors provided ...
  • 91
2 votes

Clarification re who sends DMARC reports

DMARC reports are prepared and sent by servers that receive your emails. They won't come from your domain because they're not emails from you. In a nutshell, those email servers sending DMARC reports ...
  • 91
3 votes
Accepted

Clarification re who sends DMARC reports

DMARC is defined by RFC 7489. It has this: 6.6. Mail Receiver Actions This section describes receiver actions in the DMARC environment. [..] 6.6.5. Store Results of DMARC Processing The results of ...

Top 50 recent answers are included