2009/11/22 Russell Jones <rjo...@eggycrew.com>: > I know that maximal_queue_lifetime is the time a message is queued before it > is sent back as undeliverable, however what is the configuration option for > how long a message is attempted to be delivered, before a warning message is > sent to the original sender saying "Hey, this message has been queued for X > hours and I haven't been able to deliver it."?
Sounds like you want the delay warning time: http://www.postfix.org/postconf.5.html#delay_warning_time
