On Mon, 3 Jun 2013 14:34:30 -0500 (CDT) David B Funk <dbf...@engineering.uiowa.edu> wrote:
> Do you not like connection-oriented RBLs? That client IP address is in > both cbl.abuseat.org & pbl.spamhaus.org lists as an infected client. We run an anti-spam service for about 100K users and sell appliances that filter for many more. Paying for RBLs is not cost-effective at that scale. > Why not just block connections from infected PCs? Sure, we could. I just thought the spams were unusual and wondered if anyone knew the motivation behind them --- it's not that they were getting past our filters; I just found them curious. Regards, David.