Am Montag, 6. November 2023, 14:01:12 CET schrieb Lars Schimmer via Exim-
users:
> Hi
>
> I am using exim4 on debian version 4.96-15+deb12u2.
> I forward mails to a remote SMTP which runs through a VPN.
hmm,
a "SMTP timeout setting" is very probably not the source nor solution.
The target host did not respond to the running SMTP connection anymore while
in a email transfer.
To me it seems the target host got the full email until the end but the
completion signal is not reaching your sending SMTP / MTA - so he count it as
a temporary error and send again after 30 minutes (depending from your EXIM
retry settings).
I remember google mail as such a candidate...
Try disabling pipelining to that host...
hth,
niels.
--
---
Niels Dettenbach
Syndicat IT & Internet
https://www.syndicat.com
PGP:
https://syndicat.com/pub_key.asc
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