Try rewriting the message ID. I think Gmail is believing the message to be a duplicate and in some cases it will silently eat duplicates.
I have a forwarding feature for my own domains that in addition to using SRS and re-signing DKIM with my domain, it rewrites the message ID. Good point about ARC; I don't have proof that it would fix things but it would potentially be something to try. Cheers, Al On Wed, May 17, 2023 at 4:23 AM Taavi Eomäe via mailop <mailop@mailop.org> wrote: > > Do those forwarded letters without SRS have intact DKIM? > > A second thing you can try is ARC (without the SRS), I've gotten the > impression that Gmail "likes" original letters (and ARC) more than it > likes any kind of mangling, including SRS. > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop -- Al Iverson / Deliverability blogging at www.spamresource.com Subscribe to the weekly newsletter at wombatmail.com/sr.cgi DNS Tools at xnnd.com / (312) 725-0130 / Chicago (Central Time) _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
