----- Original Message ----- From: "Andrew Rose" <[EMAIL PROTECTED]> To: "'Samuel Liddicott'" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Wednesday, March 05, 2003 9:23 AM Subject: RE: tarproxy fails to reduce spam
> > > What a tarpit does do is use up another resource - > > > elapsed time. However, this is not a critical > > > resource for a spammer. A spammer can easily open > > > several simultaneous connections to the same SMTP > > > server. > > > > I don't see why the tarpit SMTP proxy shuld be unable > > to limit all connections from the same IP and even > > give "500 get lost for the time being" responses to > > further connections from those IP so that it will not > > accept too many connections from the same IP - or at > > list if it looks like spam. > > I covered this objection in my original email. Given that spammers > send out thousands of mails to different people on different servers > all over the world, they will easily be able use up all their bandwidth > without having more than 1 simultaneous connection to the same server. Yes, I think the point was though, that if tarpit becomes common and spammers can't use up their bandwidth anymore they may start to open more than one connection in order to deliver. I've recently joined the list and archives weren't available when I joined so I don't know what you original comments may have been. Sam
