Re: [exim] exim 4.96 stopping because postfix is starting?

On 19/12/2022 19:55, Johnnie W Adams via Exim-users wrote:
> I shouldn't be, and I believe in fact I am not (except briefly in error).
> What still puzzles me, though, is what my MUA is and why it's routing to
> the wrong destination. I'd drawn the tentative conclusion the problem was
> postfix, but I see now that was a red herring.

The problem is whatever or whoever is causing systemd to start postfix.
I can think of three causes... obviously, there could be more.

- An auto-update on your system in installing, or updating, postfix -
and the install script is telling systemd to enable it and start it.
Look for an association with system update times.

- An administrator thinks postscript is needed, and keeps installing
and/or enabing it. Cluebat time.

- Your system has been compromised. Wipe and start over.



> 2022-12-19 09:08:49 1p7Hl3-00015O-1S <= <> R=1p7Hiz-00010h-3B U=exim P=local S=3157

That's an Exim log line, recording a bounce having been generated
and "received" by that Exim for input processing. Follow the R=
message ID to see what message was being bounced.

There no special reason for Postfix to have gotten involved with that.
--
Cheers,
Jeremy