On Tue, Sep 07, 2010 at 06:38:15PM -0500, Noel Jones wrote: > If you have customers sending large amounts of abusive mail, seems > as if there would be better ways to deal with that eg. sender > quotas, monitoring of undeliverable mail, inbound spam/virus > scanning, etc. But I'm not an ISP; I can fire anyone who abuses the > mail system.
We do sender quotas, some monitoring of undeliverable mail, in and outbound spam/virus scanning and more, but this doesn't catch all. Users that are clearly abusing the system (read: "has malware installed") gets blocked automatically or manually, but there's a time window where they will be able to send out junk, and when you have enough customers -- someone will always have the latest and greatest malware installed and we woun't catch it immediately. > and I still fail to understand how controlling your customers > envelope sender will help with backscatterer.org. It will make sure that when viruses/malware on the customers computer is sending out spam from fake addresses, the bounces goes back to the customer with the infected computer -- instead of to whomever the malware was pretending to send from. -jf