Zsombor B:
> Hi,
>
>
> > Please provide evidence.
>
> This is the point. :)
>
> External client sent us a mail we accepted with queue id "A".
> I have asked them to look for this "A" in their logs.
> I was told they can't find it in their logs.
Postfix also logs a Message-Id, which should be the same in their
logs.
Feb 9 02:15:17 spike postfix/smtpd[1248]: 4DZZ0j1z3LzJrNw:
client=english-breakfast.cloud9.net[2604:8d00:0:1::7]
Feb 9 02:15:17 spike postfix/cleanup[1252]: 4DZZ0j1z3LzJrNw:
message-id=<20210209071515.7d25340...@mail.example.com>
Wietse
>
> Zsombor
>
>
>
> Id?zet (Wietse Venema <wie...@porcupine.org>):
>
> > 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)
> >
> > Wietse
>
>
>
