Thomas Spycher:
> So my questions are:
>
> 1. Can anyone explain me how the original smtp binary takes
> commands from the queue?
That is an internal interface. Programs that depend on this are NOT
SUPPORTED and WILL BREAK as Postfix evolves over time.
To catch delivery status, submit mail with SUCCESS,DELAY,FAIL status
notification requested.
$ sendmail -N success,delay,fail
RCPT TO:<example> NOTIFY=SUCCESS,DELAY,FAIL
Then, have Postfix report SUCCESS, DELAY or FAIL as mail leaves
your perimeter (or is delayed, or rejected):
/etc/postfix/main.cf:
# The following makes DELAY notification work.
delay_warning_time = 1s
# The following makes SUCCESS notification work.
smtp_discard_ehlo_keywords = dsn
This will give you an RFC-compliant status report; the "delay" report
will probably be separate.
Wietse
