I have an OpenBSD 5.9 and an OpenBSD 6.0 server each set up as email servers. The v5.9 server adds a message-id header to outgoing emails, the v6.0 does not. Looking at the change log for each release it states that for v5.9 "/Add Message-Id header if necessary/" and v6.0 "/Add missing date or message-id when listening on the submit port/ ."
I don't use the submission port on either server, just port 25, but 5.9 sends a message-id and 6.0 does not. What does "/if necessary/" mean for the 5.9 server? What is the deciding factor to make the header necessary? I would like the v6.0 server to send a message-id too, how do I make whatever-it-is necessary on this server? Or was the "if necessary" feature removed in 6.0 and replaced with "...submit port"? Can anyone advise, please? -- View this message in context: http://openbsd-archive.7691.n7.nabble.com/Missing-message-ID-header-in-OpenSMTPD-emails-tp315697.html Sent from the openbsd user - misc mailing list archive at Nabble.com.
