alt Hacker NewsAs they should. You should have done this 5 years ago. Takes like 10 minutes. Gmail has been rejecting them for years at this point.
As they should. You should have done this 5 years ago. Takes like 10 minutes. Gmail has been rejecting them for years at this point.
"Google has been rejecting them for years..."
Not true, at least in my experiences.
I have a bunch of email accounts which have SPF and DKIM, but are missing the DMARC line - I've had no deliverability problems at all, until this weekend, and now only with Outlook. Emails to Gmail accounts go through just fine.
The combination of: √ Valid SPF √ Valid DKIM signature X Missing DMARC policy
Is clearly ambiguous. Since a DMARC of "p=none" (in the context of valid SPF and DKIM) really adds no information, so interpreting "missing DMARC" as "p=none" seems reasonable. Sounds like Microsoft was taking that approach until this weekend.
I wonder if there's an actual written standard?