RE: Identify the domain that an IP Address Belongs to

  • From: "Jim Harrison" <Jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Tue, 4 Jan 2005 08:16:09 -0800

http://www.dnsstuff.com

  Jim Harrison
  MCP(NT4, W2K), A+, Network+, PCG
  http://isaserver.org/Jim_Harrison/
  http://isatools.org
  Read the help / books / articles!
 
 
-----Original Message-----
From: Brian Scheele [mailto:bscheele@xxxxxxxxxxxxxxx] 
Sent: Tuesday, January 04, 2005 6:41 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Identify the domain that an IP Address Belongs to

http://www.ISAserver.org

I need to identify the domain that sent viruses to me.  The only
information that I have is the IP address, and of course the from
address
in the email is almost always spoofed.

Network-tools.com used to have an express lookup that worked.  Now, all
I
can find are sites that will tell me who the ISP is that owns the IP
address, not the mail server or the domain that the IP address is
assigned
to.

I need this information to make sure that I do not block IP addresses
that
would be sending legitimate email, and so that I can contact the
appropriate IT people from where the viruses came from.

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