SPAM pomoć?

U posljednje vrijeme primam mnogo SPAM poruka. Zanima da li svaka e-mail poruka nosi tačnu IP adresu odakle je došla tj. da li je moguće na bilo koji način maskirati polazište e-mail poruke. Ukoliko neki SPAMer na svom računaru postavi e-mail server da li će e-mail poruka nositi njegovu IP adresu?
U nastavku dajem primjer. Da li su sljedeći zaključci tačni:
- "Received: from localhost" upućuje da je SPAMer postavio privremeni e-mail server na svom računaru,
- radi o qmail programu na UNIX/Linux platformi "qmail 4400 invoked by uid 1002"
- SPAMerova adresa je u tom trenutku bila 216.237.10.74

I kao šlag na tortu: kako da se izborim sa problemom SPAM-a?
Unaprijed hvala i pozdrav!

Received: from [216.237.10.74] (helo=b01)
by m1.dnsix.com with smtp (Exim 3.34 #1)
id 16xDga-0006lU-00
for [email protected]; Mon, 15 Apr 2002 14:06:52 -0700
Received: (qmail 4400 invoked by uid 1002); 15 Apr 2002 21:00:36 -0000
Received: from localhost ([email protected])
by localhost with SMTP; 15 Apr 2002 21:00:36 -0000
From: "Investor Insights" <[email protected]>
To: <[email protected]>
Reply-To: <[email protected]>
Subject: NEW: (IDIB) - WATCH THIS STOCK TRADE TOMORROW
Date: Mon, 15 Apr 2002 17:00:36 -0400
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary=_________NextPart
Message-Id: <[email protected]>

Potpis

"I'd take the awe of understanding over the awe of ignorance any day."
- Douglas Adams

Idi na ovaj link : http://www.uzice.net/yasi/