jpunix.com and MX'ing
Craig A. Johnston
caj at tower.stc.housing.washington.edu
Sat Jan 21 09:39:55 PST 1995
John A. Perry wrote:
>
> First of all, I hope you don't mind me posting this to a couple of
> lists as I find your questions pertinent and should be of value to many
> readers.
Oops, I actually meant to direct it to the list myself, but forgot
to edit my headers. Sure.
>
> > To what extent can the operator of such a remailer really hide his
> > actual site?
>
> It depends on the level of control the remailer operator has on the
> site that the remailer operates from.
Assume root.
I know that you can set the 'masquerade as' thing in sendmail, but
of course any other SMTP agents you deal with are going to
correctly identify you when you 'HELO' and you're going to wind
up in the header, somewhere... (well, except smail 3.1, and probably
others.) -- I'm assuming here the best one will be able to do will
be equivalent to a forgery via port 25.
--Craig
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