North American Network Operators Group|
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Re: Time to check the rate limits on your mail servers
GE> Date: Thu, 03 Feb 2005 17:14:40 +0200 GE> From: Gadi Evron GE> heck, I don't see how SMTP auth would help, either. They have local GE> access to the machine. "User joe6pack is pumping out 100k messages/day. That can't possibly be valid; let's disable his -- and only his -- SMTP access. He can't spam directly via SMTP/25 connections, so we're good there." "User joe6pack's mail volume is two sigma above normal. Good thing our outbound mail spam scanning is much more stringent under these conditions." "User joe6pack doesn't know which of 50 machines behind his SOHO's NAT box sent the spam. Luckily, the username helps us/him track down the infected box." Eddy -- Everquick Internet - http://www.everquick.net/ A division of Brotsman & Dreger, Inc. - http://www.brotsman.com/ Bandwidth, consulting, e-commerce, hosting, and network building Phone: +1 785 865 5885 Lawrence and [inter]national Phone: +1 316 794 8922 Wichita ________________________________________________________________________ DO NOT send mail to the following addresses: [email protected] -*- [email protected] -*- [email protected] Sending mail to spambait addresses is a great way to get blocked. Ditto for broken OOO autoresponders and foolish AV software backscatter.