Grant Taylor wrote: >kalin m wrote: >> so if it's not 5xx it's not a bad email? i see dsn=4.0.0. that's not >> enough? > >In SMTP 4.y.z DSNs are "temporary" errors. They could be caused by a >spam filter over loaded, or the system shutting down, or... > >> i'm assuming it's retried by the mta. the settings in mailman clearly >> state that it should be discarded right away... > >The 4.y.z should be seen as an invitation for the SMTP server to try >sending the message again at a later time. > >The MTA will eventually time out the message and generate a permanent error.
Or, if the MTA returns the 4xx status directly to Mailman during SMTP, Mailman will retry the send every DELIVERY_RETRY_WAIT (default 1 hour) for DELIVERY_RETRY_PERIOD (default 5 days), but in this case, mailman will eventually give up but not record a bounce. If this is the case and you want Mailman to record a bounce, you have to arrange for your MTA to return a 5xx status for an invalid recipient domain. So the first question is where is the message. Is it queued in the MTA, or is it in Mailman's retry queue. If it's queued in the MTA, as Grant says, the MTA will eventually time out on this message and return a hard bounce to Mailman. If it is queued in Mailman, mailman will eventually give up and no bounce will be recorded. -- Mark Sapiro <m...@msapiro.net> The highway is for gamblers, San Francisco Bay Area, California better use your sense - B. Dylan ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org
