On 2022-02-18, kasak <ka...@kasakoff.net> wrote: > Hello misc! I have mailed this message at m...@opensmtpd.org at first, > but nobody answered, maybe someone help here? > > I have a question about opensmtpd and rspamd. > I'm using opensmtp and rspamd as a relay server with spam checking. > The spam check is done with help of opensmtpd-filter-rspamd. > The os is OpenBSD 7.0 > > I have noticed, that all DSN messages coming to or from internal mail > server, are marked as spam, because rspamd adds BROKEN HEADERS for > this messages. > First of all, I tried to research this issue but with no luck, i've > created this issue on rspamd github repo > https://github.com/rspamd/rspamd/issues/3983 > And we found that messages with "broken headers" have empty "mail > from" header, where rspamd expect it as "<>" > > The patch to workaround this was added to rspamd side. > But, is this correct behavior of "mail from" header? Maybe the header > should have "<>" in it?
If I understand correctly this relates to the protocol used when feeding the message to rspamd, i.e. the part which is handled only by opensmtpd-filter-rspamd and rspamd, rather than something in SMTP. https://rspamd.com/doc/architecture/protocol.html#http-headers just says "Defines SMTP mail from command data" and isn't clear whether the angle brackets </> should be included. So I would say that it's under-specified in rspamd docs. In that case I would think "correct behaviour" is whatever rspamd expects.. -- Please keep replies on the mailing list.
