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).
When the message can't be delivered to the sender, Postfix can be
configured to send it to $2bounce_notice_recipient instead.
This is documented.
man 5 postconf | less '+/^notify_classes'
Wietse
