Hello,
I’m having some issues with an outgoing spam filter (rspamd) blocking some mails sent from zammad. Some of those issues are unrelated to Zammad itself but one is: mail sent from zammad have a “Mime-Version” header and it does not please rspamd which expects the “MIME-Version” casing (rspamd/rules/headers_checks.lua at e15327ef1f753429b576cb29a6b124f2f000113e · rspamd/rspamd · GitHub). Granted, it is pedantic but that’s just how it is…
This issue has been reported to the “mail” gem: The "Mime-Version" header capitalization is considered a spam signal by rspamd · Issue #1497 · mikel/mail · GitHub and fixed end of 2022. A new release, with the fix, was published one month ago: Release v2.9.0 · mikel/mail · GitHub
Would you consider bumping it?
Thanks
W