Urgent, being used as spam relay Please Help!
Mon Nov 17 13:52:32 CET 1997
"Mark Simcoe" <msimcoe at netcentral.co.uk> 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 at tcp.net.uk Network Manager | Play: phil at lart.ing.co.uk Total Connectivity Providers | Consider myself properly disclaimed "The nice thing about standards is that there are so many to choose from" -anon
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