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  • From: Ruud Baart <address@concealed>
  • To: address@concealed
  • Subject: [sympa-users] Error: Too many connections, slow down
  • Date: Tue, 5 Jul 2022 23:05:37 +0200

Hi,

My Sympa installation (6.2.68) works ok with postfix on my Debian server but it is too fast. I get errors like:

JulĀ  5 17:47:52 mail postfix/smtp[2888446]: 4D48D81019: to=<address@concealed>, relay=smtp-in.orange.fr[80.12.26.32]:25, delay=3.4, delays=0.13/0.09/3.1/0, dsn=4.0.0, status=deferred (host smtp-in.orange.fr[80.12.26.32] refused to talk to me: 421 opmta1mti29nd1 smtp.orange.fr 8kmDofKH1S6M1 Trop de connexions, veuillez verifier votre configuration. Too many connections, slow down. OFR004_104 [104])

Is there a simple way to avoid these kind of errors.

I also think, but can't prove, that Microsoft servers are blocking my smtp server because of these "burst" of mails.




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