tag:blogger.com,1999:blog-1110061715039138558.post-48766580005206046522008-03-03T12:49:00.000-08:002008-03-06T09:19:45.528-08:00<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://www.mailchannels.com/documents/how-inbound-traffic-control-improves-spam-filtering.pdf"><img style="margin: 0pt 10px 10px 0pt; float: left; cursor: pointer;" src="http://bp0.blogger.com/_h7qzoWiXC1Y/R83D-74a_uI/AAAAAAAAAEg/a4VhTfe70Dw/s400/vb.gif" alt="" id="BLOGGER_PHOTO_ID_5174007032912215778" border="0" /></a>Ken Simpson, <a href="http://www.mailchannels.com/documents/how-inbound-traffic-control-improves-spam-filtering.pdf">How Inbound Traffic Control Improves Spam Filtering</a>, March 2008, <a href="http://www.virusbtn.com/">Virus Bulletin</a>. Copyright is held by Virus Bulletin Ltd, but is made available on this site for personal use free of charge by permission of Virus Bulletin.Desmond Liaonoreply@blogger.com