[73994] in North American Network Operators' Group
Re: Spammers Skirt IP Authentication Attempts
daemon@ATHENA.MIT.EDU (Joe Rhett)
Fri Sep 10 04:59:51 2004
Date: Fri, 10 Sep 2004 01:57:51 -0700
From: Joe Rhett <jrhett@meer.net>
To: Stephane Bortzmeyer <bortzmeyer@nic.fr>
Cc: nanog@merit.edu
Mail-Followup-To: Stephane Bortzmeyer <bortzmeyer@nic.fr>,
nanog@merit.edu
In-Reply-To: <20040910075555.GB30348@nic.fr>
Errors-To: owner-nanog-outgoing@merit.edu
Robert Bonomi <bonomi@mail.r-bonomi.com> wrote
> > Same thing applies for 'simple' forwarding via sendmails '~/.forward'
> > mechanism. the mail server 'accepts' the mail from the original source,
> > and then 're-sends' to the new destination. That re-send originates as
> > the _forwarding_party_, WITH an 'envelope from' of that forwarding
> > party,
On Fri, Sep 10, 2004 at 09:55:55AM +0200, Stephane Bortzmeyer wrote:
> Sorry, this is simply not true (sendmail, postfix, etc, always keep
> the original envelope from when forwarding).
I'm not sure where "true" diverges from reality in your analysis, but
perhaps you should create one of those mail environments and test before
you put your foot in your mouth again?
--
Joe Rhett
Senior Geek
Meer.net
