Sabahattin Gucukoglu: > > Postfix sends delivery notifications as mail from <>. When this > > first-order notification fails, Postfix will attempt to deliver a > > second-order notification to the 2bounce_notice_recipient (default: > > postmaster) as a final attempt to avoid loss of mail. > > Are these internally-generated bounce messages distinguishable > from mail that is actually injected with SMTP or the sendmail > command as 'mail from:<>' or 'sendmail -f ""'? I assume one of
Just like non-bounce messages, internally-generated single-bounce and double-bounce messages are indistinguishable from externally-generated mail except, for programs that make detailed examination of Received: headers, parse DKIM signatures, analyze logfiles, etc. In any case, the success notifier now distinguishes between bounce and non-bounce messages, similar to the fail/warn notifiers. Wietse