alt Hacker NewsThat says for "high volume senders" but they now apply the rules regardless of volume.
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ranger_danger • yesterday at 8:28 PM
Is there any actual evidence of this outside of this one company's AI-generated article?
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That says for "high volume senders" but they now apply the rules regardless of volume.
Is there any actual evidence of this outside of this one company's AI-generated article?
Yes, this is an older announcement from last year. Yahoo and Google did the same at that time.
The failure associated with that announcement is different. It is 5.7.515.
This new failure mode is "5.7.1 Message rejected: Message lacks SPF/DKIM/DMARC Auth Records (AS9031519)", I haven't seen any formal announcement on my end. The important thing to know about 5.7.1 is that it represents a few different failure modes, the AS9031519 is the important bit and it indicates that the domain lacks a DMARC record.