[Pkg-exim4-users] exim4 stopped sending mail after upgrade from Buster to Bullseye

[Marc Haber]

On Sun, Aug 22, 2021 at 04:52:19PM -0400, Gary Dale via Pkg-exim4-users wrote:
> AUTH method (PLAIN LOGIN): using LOGIN
> > AUTH LOGIN
> [334] 'VXNlcm5hbWU6'
> > c2VuZG1haWxAcm9zc2xhbmQuZGVudGFs
> [334] 'UGFzc3dvcmQ6'
> > VGVycmlibGUyc2hvVXNl

Please change this password as soon as possible, it is now archived and
publicly accessible.

> When I send e-mail through exim4, it simply stays in the queue. I'm not
> seeing any error messages in the exim4 log (/var/log/exim4/mainlog) other
> than ones saying the mail is still in the queue (retry limit not reached).

Your server has been considered "down" for quite some time so that exim
doesn't retry immediately. Do you get some information from exim -Mc
<messageID>?

What do your logs say when you force delivery with exim -M <messageID>?
(This might destroy evidence we might need to debug retrying, but it'll
get you some logs)

Greetings
Marc

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