On 09 Feb 2021, at 05:45, Wietse Venema <wie...@porcupine.org> wrote: > Zsombor B: >> It turned out during an investigation that our postfix servers don't >> provide a queue id for the external clients when accepting a new email. > > Please provide evidence. > > Postfix SMTP client logging: > ... status=sent (250 2.0.0 Ok: queued as AA92365E6F)
The only thing that I see is that the queue id is a different form for mail user on the server versus mails to external addresses. # grep "status=sent" /var/log/mail.log | \ awk '{for(i=13;i<=NF;i++) printf $i" "; print ""} (250 2.0.0 <krem...@kreme.com> yIXGF1V9ImDhVgAAIdGjjQ Saved) (250 2.0.0 Ok: queued as B1AA63AB070) Perhaps the different formatting from "enable_long_queue_ids = yes" is confusing the OP? -- If I were you boys, I wouldn't talk or even think about women. 'T'ain't good for your health.