On Tue, December 4, 2018 1:05 pm, Viktor Dukhovni wrote: > Is that the verbatim message, or just similar? Postfix responds with
Viktor, thanks , vebatim is: "An error occurred while sending mail: The mail server sent an incorrect greeting: 4.7.0 geko.sbt.net.au Error: too many connections from 147.50.1.226." querying this further, I was told: "several users get this error, it seems to go away after we restart firewall" > a similar message when a client exceeds either the concurrency or the > connection rate limits you have configured: > both concurrencies at default, commented out in main.cf # grep concur main.cf #local_destination_concurrency_limit = 2 #default_destination_concurrency_limit = 20 # grep connect main.cf smtpd_client_connection_rate_limit = 12 smtpd_client_connection_count_limit = 5 there is a few users, ~30 or more at that IP address, should I up any ? > In both cases Postfix logs a more detailed message to the system > log, so that's where you should have looked for messages relating to > "147.50.1.226". get nothing here: # grep 147.50.1.226 /var/log/messages
