🚀 go-pugleaf

kjones@talos.pm.com (Kyle Jones) writes:

>Karl Denninger writes:
> > We are running Smail3, and need to have the functionality in
> > "Return-Receipt-To:" that is present in sendmail and elsewhere.
> > Anyone know how to do this using smail3?  [...]

>Presumably smail3, like sendmail, calls another program to do
>final message delivery.  Insert the Return-Receipt-To processing
>into that program, or substitute a program that calls the
>delivery program and then does the Return-Receipt-To processing
>after delivery is successful.

[ Smail3 will let you call a program to do delivery, or perform the
delivery itself, depending on how you configure things. ]

I think the easiest way to get the behaviour Karl wants would be to
set up a shadow transport for "local" that looks for the Return-Receipt-To:
header, and acts appropriately on it. The nice thing about shadow transports
(in this case) is they are only called if the primary transport delivers
sucessfully.

-- 
     Lyndon Nerenberg  VE6BBM / Computing Services / Athabasca University
         {alberta,cbmvax,mips}!atha!lyndon || lyndon@cs.athabascau.ca
                           Practice Safe Government
                                 Use Kingdoms