Answer Return-Receipt-To: Headers with Smail
--------------------------------------------

I was faced with this problem some time ago when we had to implement
a gateway to a non-RFC based mail transport system (ZCONNECT). We build
a passive gateway (just converting the format leaving all actual mail
handling to Smail). ZCONNECT had a mandatory Receipt-feature, so we
needed an RFC-equivalent.

The idea of a shadow-transport was shown to me by Rainer Bieniek, the
first implementation was a bourne-shell-script, which I discarded later
because it needed temporary files.

This is the reimplementation in perl. The shell-script is available
on request, but you don't want to use it, believe me!


Martin Husemann
martin@euterpe.owl.de
