Exim4

Posted Dec 10, 2024 8:27 UTC (Tue) by SiB (subscriber, #4048)
In reply to: GNUS by SiB
Parent article: Debian opens a can of username worms

Correction: The error message came fom exim4:

=?utf-8?Q?=3C=F0=9F=98=92?=@pipebreaker.pl>: malformed address: >
may not follow =?utf-8?Q?=3C=F0=9F=98=92?=@pipebreaker.pl

Somehow, gnus was confused by the <> around the address. Without <>, exim4 did a graylisted delivery attempt.