> From: "Brian Bisaillon" <Brian.Bisaillon@mbs.gov.on.ca> > I don't see how filtering messages helps with bandwidth issues > associated with spam. You still have to receive spam before you > can filter it out and this is what uses up bandwidth. Spam needs > to be stopped at the source before it even enters a receiving > network. ... Have you computed how much bandwidth spam actually consumes? Is your situation one in which all SMTP email uses significant bandwidth? As I understand things, it has been years since the bandwidth required to receive and discard spam or all email was significant except in unusual situations. Computers and networks where HTTP is not used and that pay by the bit can feel real pain from spam. However, others might benefit more by somehow increasing the MSS used for their HTTP traffic from 512 to 1460, thereby saving about 80/1460 or 5% of their gross bandwidth. Vernon Schryver vjs@rhyolite.com