Heiko Schlittermann via Exim-users <exim-users@???> (Fr 11 Sep 2020 08:56:37 CEST):
> Marc MERLIN via Exim-users <exim-users@???> (Do 10 Sep 2020 21:24:51 CEST):
> > Howdy,
> > I have Exim version 4.92 #3 built 07-May-2019 17:44:23
> > on both the backup MX and the main MX (both running debian)
> …
> > MX sends to the main MX, and the mail gets delivered to my mailbox, but
> > the transaction isn't finished in a way that the backup knows the mail
> > went through, so it sends it over and over again.
>
> Sounds like a known (and fixed) issue to me. I'll try to find any
> reference.
This may be fixed in 8f9adfd36222d4e9e730734e00dffe874073e5b4
This commit is currently only part of master and exim-4.94+fixes
If I remember well and if you really hit this bug, I believe, disabling
pipelining would mitigate it.
In case the Debian Exim package maintainer is willing, we can help
providing a backport of the above mentioned commit.
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann
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