Am 17.10.2011 09:04, schrieb Maria Arrea: > > Hello. > > Our mailboxes box is a RHEL 5.7 x64 running postfix 2.3.3 . We also > have a system (out of control) running mailman that send us a lot of > messages in a short amount of time (23.000 messages of 16KB in 2-3 > minutes). We want to slow down that mailing list box. I have been > reading about "Postfix Perfomance Tuning" here: > > http://www.postfix.org/TUNING_README.html#server_tips > > > But in this web page I can read "IMPORTANT: These limits must not be > used to regulate legitimate traffic: mail will suffer grotesque delays > if you do so." What is the proper way to slow down a legitimate MTA? The > mailman box uses PIPELINING and sends the mail with 100 recipients each. > > Regards > > Maria
for tmp workaround use anvil smtpd_client_connection_rate_limit = 10 smtpd_client_connection_count_limit = 5 anvil_rate_time_unit = 60s for networks which shouldnt slow down use smtpd_client_event_limit_exceptions = 127.0.0.1, xxx.xxx.xxx.xxx/xx smtpd_client_connection_limit_exceptions = 127.0.0.1, xxx.xxx.xxx.xxx/xx or/and do not announce pipelining to that ip smtpd_discard_ehlo_keyword_address_maps = hash:/etc/postfix/smtpd_discard_ehlo_keyword /etc/postfix/smtpd_discard_ehlo_keyword xxx.xxx.xxx.xxx pipelining -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
