Hi, I am running OpenBSD 6.5 with OpenSMTPD and dovecot and if I send an email to an invalid email address, I do not get a bounce back from OpenSMTPD telling me that the email address is invalid. So this means I never know that I made a mistake in sending my email.
Taking a look at the maillog I can see the following two relevant log entries: Feb 10 11:28:53 mxa1 smtpd: 3b5195a4c7580b02 smtp envelope evpid=3e3d1ac92f3d2922 from=<> to=<u...@domain.com> Feb 10 11:28:53 mxa1 smtpd: 3b5195a5c52b38dc mda delivery evpid=3e3d1ac92f3d2922 from=<> to=<u...@domain.com> rcpt=<u...@domain.com> user=vmail delay=0s result=PermFail stat=Error ("mail.lmtp: LMTP server error: 501 5.5.4 Invalid FROM: Missing domain") Feb 10 11:28:53 mxa1 smtpd: warn: queue: no return path! It simply looks like the From: header in the envelope is not set at all. So I was wondering how can I set the From: header in my smtpd.conf config in order to solve this issue? Cheers, Mabi