On Thu, 2026-02-26 at 11:03 -0600, Roger Heflin wrote: > > 3. Outright Rejection (SMTP Level) > > In 2024 and 2025, Google implemented stricter requirements for > > bulk > > senders (like SPF, DKIM, and DMARC authentication). If an email > > is > > so poorly authenticated that Gmail considers it a "hard fail" > > or a > > malicious spoof, it might be rejected entirely before it even > > reaches your account. In this case, the email doesn't go to > > Spam or > > the Inbox—it simply never arrives. > > > > 4. Filter Specificity Issues > > Sometimes a filter fails because it’s looking for the wrong > > thing. > > * The "From" name vs. Email address: If you filtered the name > > "John > > Doe" but he sends from a different email address than the one > > you > > saved, the filter won't trigger. > > * Hidden "via" addresses: Many newsletters use third-party > > senders > > (like Mailchimp). If the "Reply-to" address doesn't match the > > "Sender" address, a simple filter might miss it. > > Pro Tip: To make your filter "bulletproof," instead of just > > filtering by email address, try filtering by the domain (e.g., > > from:*@company.com) or a unique word that always appears in > > those > > emails. > > > > I wouldn't expect any of those things to apply in this case. > > > I don't know why you think none of those apply. > > This is a #3 rejection. SMTP decided something was wrong with the > message and outright rejected--that is exactly what this rejection > message is. So clearly gmail has a few more (half-assed) rules of > some sort than Gemini knows about, which is not a shock since no AI > will know about what Gmail is doing since Gmail almost certainly does > not document it any place public that Gemini(or any other public AI) > would have been able to scrape.
If it's #3 then a SPF, DKIM, DMARC etc. problem would be caused by the list server, i.e. not Stephen nor me. If it's not that, then who knows. The reason I asked Gemini and not (say) ChatGPT is that it's run by Google, so is presumably more likely to have correct answers to this question. poc -- _______________________________________________ users mailing list -- [email protected] To unsubscribe send an email to [email protected] Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/[email protected] Do not reply to spam, report it: https://forge.fedoraproject.org/infra/tickets/issues/new
