Urgent, being used as spam relay Please Help!

At 13:29 17.11.97 +0100, NCC local-ir list Moderator wrote:
>
>------- Forwarded Message
>
>Date:     Mon, 17 Nov 1997 09:59:42 -0000
>From:     "Mark Simcoe" <msimcoe at netcentral.co.uk>
>To:       <local-ir-list at ripe.net>
>Subject:  Urgent, being used as spam relay Please Help!
>
>Hi,
>
>We have just been used as a smtp relay for one of the US spam companies and
>it crashed one of our mail servers, the service remained unaffected as our
>backup systems took over but we use sendmail and I cannot seem to find out
>how to stop us from being used in this fashion.
>
>I know this is not the correct list for this sort of thing but I need some
>expert advice as our software suppliers don't know how to stop it.
>
>As a general warning to everyone out there we need to protect our systems
>from these people who are starting to use us all to deliver their mail for
>them without paying us a penny.
>
>Please someone help,

Set up an access list in your main router and block incoming smpt traffic
for the entire net-address of this company or for the mailservers they own.





--

Med vennlig hilsen / Kind regards

Stig Bull
IP-drift
Telenor Nextel AS

email privat: stig at undernet.org
email jobb: sb at online.no
Tlf sentralbord: 22 77 19 00