[SpamCop.net - protecting the internet through technology]

[SpamCop-List] Re: SpamForce - Is this what you have been looking for?

Michael Lefevre michael.spamcop at michaellefevre.com
Sat Feb 28 16:20:14 EST 2004


N Miller wrote:
> In article <c1n76s$55c$1 at news.spamcop.net>, MikeE at ster.invalid says...
>
> ...that some fool working for MailWasher said...
>
>> "actually sends the bounce back via your ISP's postmaster, so it looks
>> exactly like it has come from your ISP and not from you at your
>> address."
>
> Heh, heh. That one is a lie!

What they mean is that MailWasher forges the ISP postmaster address onto
the bounce.  The bounces do actually look similar to "real" bounces, but
the fact that they originate from a end-user IP rather than the IP of the
ISP's incoming mail server generally gives them away.

-- 
Michael


More information about the SpamCop-List mailing list