Re: unexpected UNDELIVERED MAIL

From: Kee Hinckley (nazgul@somewhere.com)
Date: 11/30/01


Message-Id: <p05100325b82d6b62ecd5@[192.168.1.104]>
Date: Fri, 30 Nov 2001 12:02:13 -0500
To: Eric Santonacci <Eric.Santonacci@talc.fr>
From: Kee Hinckley <nazgul@somewhere.com>
Subject: Re: unexpected UNDELIVERED MAIL


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

At 1:52 PM +0100 11/30/01, Eric Santonacci wrote:
>Hello,
>
>Since a week, I'm receiving undelivered email notification for mail I didn't
>send neither someone in my domain. I though that someone (spammer)has hacked
>my SMTP server but it seems, they are just using my domain name as mail appear
>to come from. Is there any possiblity to stop that , to know who does this or
>something else against this practice? Except filtering incoming mail.

Track and report the spammers. Of course the real people you want to
shoot are the people who write the spam software. The latest trend
seems to be generating spam using a list of legitimate domains and
randomly generated email addresses. For me that's a great
improvement from a few years ago when spamming software used to ship
with single domain defaults (like using @somewhere.com for
everything). You haven't lived until your mail server gets hit with
a deluge of thousands of bounces from AOL.

>I have postfix and only LAN subnet can (should be) use it. I have a firewall
>rule for IPSpoofing so I don't think some one hacked me but how can I be sure?

If you can get hold of one of the messages, look at the received
headers. If you aren't in it, it's not your site. If you are,
you've got a problem.
- --

Kee Hinckley - Somewhere.Com, LLC
http://consulting.somewhere.com/
nazgul@somewhere.com (or ...!alice!nazgul for time travelers :-)

I'm not sure which upsets me more: that people are so unwilling to accept
responsibility for their own actions, or that they are so eager to regulate
everyone else's.

-----BEGIN PGP SIGNATURE-----
Version: PGP Personal Security 7.0.3

iQA/AwUBPAe7oSZsPfdw+r2CEQLAXwCdFf7JtrHhl7mkKUsol+R0m9sucwYAoKNJ
Pocr5F16hU811nImY1EkwIP1
=k3sF
-----END PGP SIGNATURE-----



Relevant Pages

  • Re: unexpected UNDELIVERED MAIL
    ... Subject: unexpected UNDELIVERED MAIL ... On Fri, 2001-11-30 at 04:52, Eric Santonacci wrote: ... I'm receiving undelivered email notification for mail I didn't ...
    (Focus-Linux)
  • unexpected UNDELIVERED MAIL
    ... Subject: unexpected UNDELIVERED MAIL ... I'm receiving undelivered email notification for mail I didn't ... rule for IPSpoofing so I don't think some one hacked me but how can I be sure? ...
    (Focus-Linux)