On Wed, May 20, 2009 at 12:56 PM, Wietse Venema <wie...@porcupine.org> wrote: > tom lee: >> > >> > Postfix WILL send the "delayed mail" notification to the email SENDER. >> >> >> If I set delay_warning_time for 2 day, can I see the to-be-sent mail >> in the queue /var/spool/postfix/deferred? >> >> Another issue is that my sever blocked out-going port 25, it only >> allows incoming port 25 in my firewall. >> I think no mails will be sent out even after 2 days or default 5 days >> for the deferred emails. >> Are those emails in the queued will be removed automatically? > > As required by Internet mail standards, Postfix returns non-deliverable > mail to the sender (Postfix can send a copy to $bounce_notice_recipient).
If I set delay_warning_time for 2 days and blocked the outgoing port 25, what happened to the to-be-bounced mails? > When the message can't be delivered to the sender, Postfix can be > configured to send it to $2bounce_notice_recipient instead. The default soft_bounce is no, will it keep the mail queued and never return back to the sender? > > This is documented. > man 5 postconf | less '+/^notify_classes' thanks. Tom.
