On Fri, Feb 23, 2007 at 03:33:00PM +0000, David Hart wrote: > On Thu 2007-02-22 12:57:34 -0500 Greg Folkert wrote: > > On Thu, 2007-02-22 at 16:38 +0000, David Hart wrote: > > > On Thu 2007-02-22 10:33:34 -0500 Greg Folkert wrote: > > > > > I can't see any advantage in scanning during smtp connect time. > > > By the time you've got the DATA you've used up the bandwidth and might > > > as well accept it. > > > > Not really, I've got usage data dating back to Sasser. Significantly > > lower bandwidth once I started using scanning and reject at SMTP time. > > > > In fact today... just to see, I disabled SA-Exim. I've quadrupled the > > amount of bandwidth My COLO provider has seen my machine use. > [snip] > > I must be missing something here. In order to scan an email you must > receive the email (I don't mean accept). How can rejecting/accepting > emails at this stage make any significant difference in bandwith used > (let alone a quadrupling of bandwidth)? isn't it just using RBL's at smtp time and rejecting before recieving the mail? A
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