[Esd-l] SECURITY_NOTIFY_SENDER: Return-Path

[R P Herrold]

On Tue, 1 Oct 2002, John D. Hardin wrote:

> I think that Return-Path: may be a sendmail-ism - is the MTA sendmail?

ehhh:

   http://deesse.univ-lemans.fr:8003/Connected/RFC/822/28.html

and RFC 2821 sect 4.4 mandatory support required if present:

 When the delivery SMTP server makes the "final delivery" of a 
message, it inserts a return-path line at the beginning of the 
mail data. This use of return-path is required; mail systems 
MUST support it.

-- Russ herrold