Re: Urgent, being used as spam relay Please Help!
- Date: Mon, 17 Nov 1997 12:52:32 +0000 (GMT)
"Mark Simcoe" msimcoe@localhost said;
>
>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.
Whilst a quick addition of a router access-list to filter all traffic
from the source will temporarily stop the problem, you (and everyone) need
a more permanent solution.
>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.
I would strongly encourage everyone on this list to urgently review
their mail systems, and make sure they have some anti-relay measures
installed. For Sendmail, see http://www.sendmail.org/antispam.html,
and for more general information, http://spam.abuse.net/
With the growing popularity of the MAPS RBL (http://maps.vix.com),
sites not taking the right precautions will find themselves filtered
from more and more of the Internet.
--
Phil Dye | Work: pmd@localhost
Network Manager | Play: phil@localhost
Total Connectivity Providers | Consider myself properly disclaimed
"The nice thing about standards is that there are so many to choose from" -anon
