We use Declude Hijack to prevent this sort of thing. It works quite well.
-d
----- Original Message -----
From: "Matti Haack" <[EMAIL PROTECTED]>
To: "Adam Campbell" <Imail_Forum@list.ipswitch.com>
Sent: Tuesday, March 28, 2006 9:33 AM
Subject: Re[2]: [IMail Forum] SMTP-Relay / Auth only FROM valid email
Adresses
Have you found the IP address of the host?
Should not it be easy to find it in one of the spam messages?
They use some local mailserver (ken? Jana? or something like this)
which
relays the mail to us. So the mails are orginating from this server
and uses the account configured in this server. It's some old NT
machine and will be replaced in future.
But the real Problem is: Anyone from our customers could encounter a
problem like this. So I am looking for a way to prevent it. But it
seems as I have to use another mail-server to be shure that it could
not happen again.
So what I am looking for: I like to force users to use the email
adress as mail-from, which they used to authenticate on our Server. Is
this possible with imail? Registry hack? Filter rule? Script?
Everyone of you who offers SMTP Services to customers could encounter
this problem, that a Virus or Trojan send lots of UCE with faked
adress-lines to anybody.
Greetings
Matti
-
Matti Haack - Hit Haack IT Service Gmbh
Poltlbauer Weg 4, D-94036 Passau
+49 851 50477-22 Fax: +49 851 50477-29
http://www.haack-it.de
Dieses Dokument ist ausschliesslich fuer den Adressaten bestimmt.
Jegliche Art von Reproduktion, Verbreitung, Vervielfaeltigung,
Modifikation,
Verteilung und/oder Publikation dieser E-Mail-Nachricht ist untersagt,
soweit dies nicht ausdruecklich genehmigt wurde. Jegliche Haftung fur
Ansprueche, die aufgrund der Kommunikation per E-Mail begruendet
werden koennten, ist ausgeschlossen, soweit der Haftungsausschluss
gesetzlich zulaessig ist.
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