[Mailman-Users] Patch for use of Postfix VERP support

Fil fil at rezo.net
Wed May 13 10:55:52 CEST 2009


the VERP system is good to detect bounces, but it has issues when lots
of subscribers are on the same server:

(delivery temporarily suspended: connect to
smtp.xxxx.xxx.xxx[xxxxxxxxx]: Connection timed out)
(host mx01.xxxx.xxx[xxxxx] refused to talk to me: 421 4.3.2 Connection
rate limit exceeded.)

As the emails are sent one by one the connection rate to these systems
can get very high, and we get delayed.


-- Fil

More information about the Mailman-Users mailing list