nanog mailing list archives

Re: Spammers Skirt IP Authentication Attempts


From: Joe Rhett <jrhett () meer net>
Date: Fri, 10 Sep 2004 01:57:51 -0700


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


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