On 13/09/2021 20:05 Шварц Сергей Владимирович svschwartz@gmail.com wrote:
Hi guys!
I'm using dovecot submission server for clients to send emails and relay them to postfix. Everything works fine unless a client tries to send large (40Mbs) messages. No big deal one can say just set "message_size_limit = 314572800" in postfix and it should just work, but no, it does not, client gets "552 5.2.3 Message size exceeds administrative limit.". I've increased verbosity for smtpd process and get this logs for a failed attempt
<snip/>
if I configure imap client /Thunderbird to connect directly to postfix everything works just fine.
doveconf -n output is attached just in case
Try adding
log_debug=category=smtp-client or category=smtp-server or category=smtp-submit
to your dovecot.conf and see if you could get some logs?
Aki