LinuxSA Mailing list archives

  From: Stephen Baxter <steve@senet.com.au>
  To  : Geoffrey D. Bennett <g@netcraft.com.au>
  Date: Tue, 15 Jul 1997 07:43:14 +0930 (CST)

Re: sendmail.cf

> It isn't really something that sendmail was designed to do.  It would
> be possible though with a bit of hacking.  If you want to do it
> yourself, _the_ reference book to get is called "sendmail" (what
> else?) by Bryan Costales and Eric Allman, and it's published by
> O'Reilly and Associates (who else? :).  If you get it, make sure you
> get the 2nd Edition (published Jan 1997).
> 
> Also bear in mind that emails originating from "user@tne.net.au" don't
> necessarily pass through your sendmail host.



I would have to agree.
The only real way is to packet sniff !!  Not really a pleasant
alternative.

If he is using your mail host then you would have to know the IP address
he is coming from beacuse spoofing mail is childs play !





> 
> Regards,
> -- 
> Geoffrey D. Bennett (geoffrey@netcraft.com.au)
> Computer Systems Manager, NetCraft Australia
> http://www.netcraft.com.au/geoffrey/
> Red Hat Linux Resellers: http://www.netcraft.com.au/redhat/
> 
> -- 
> Check out the LinuxSA web pages at http://www.linuxsa.org.au/
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> 
> 


Stephen Baxter                            SE Network Access
SE Network Access                         http://www.senet.com.au
Direct Internet Access                    222 Grote Street
phone : +61 8 8221 5221                   Adelaide 5000
fax   : +61 8 8221 5220

<http://www.senet.com.au/~steve/pgp.html for Public Key>