On Wed, 27 Feb 2008, Russell Jones wrote:
If what you said is right, why does SPF only look at the return-path address
and not the From: address?
Nobody pays attention to return-path, they only look at From to see who their
mail client says the email
address is from.
SPF is a technology that was intended to provide a method for MTAs to
validate the sending address at the SMTP level. During the intial steps of
the SMTP protocol the MTA only has the HELO-host, envelope-from, and
envelope-to addresses to work with (all the headers and body are in the
SMTP-Data phase).
(usually the envelope-from address is interpolated into the headers as the
Return-path header during the delivery process).
--
Dave Funk University of Iowa
<dbfunk (at) engineering.uiowa.edu> College of Engineering
319/335-5751 FAX: 319/384-0549 1256 Seamans Center
Sys_admin/Postmaster/cell_admin Iowa City, IA 52242-1527
#include <std_disclaimer.h>
Better is not better, 'standard' is better. B{
