The bayesian filtering in GFI MailEssentials is quite impressive. To give you an idea of the figures, on Wednesday we had 2336 blocked by the bayesian filter, 369 blocked by my keyword list, 206 remote images and 199 blocked by ordb open relay database. This totals approx 26% of our incoming mail.
> -----Original Message----- > From: Weathersby, Bryce [mailto:[EMAIL PROTECTED] > Sent: 30 October 2003 16:41 > To: Exchange Discussions > Subject: RE: SPAM filtering on a budget > > > We are also using GFI MailEssentials 9. I have so far only activated > black/whitelisting and already have a constant 20-30% > blockage of spam. Next > week I will enable the Bayesian filter next week. I highly > recommend the GFI > Products... > > > Bryce Weathersby > Network Specialist I > Lamar Institute of Technology > Voice:409-839-2040 > Fax: 409-839-2931 > [EMAIL PROTECTED] > http://www.lit.edu > > > > -----Original Message----- > From: Mark Dewell [mailto:[EMAIL PROTECTED] > Sent: Thursday, October 30, 2003 10:20 AM > To: Exchange Discussions > Subject: RE: SPAM filtering on a budget > > > I doubt the accuracy of these tests if our own experience is > anything to go > by. > > We use GFI and I found version 8 to be blocking approx 13% > weekdays and 28% > at weekends of our incoming mail and the new version 9 (with > the intelligent > bayesian filter) blocks 23% weekdays and 62% at weekends. It > does take a bit > of work to build up the keyword list but seems pretty good to > me, although I > don't know how much spam is getting passed the filter. > False-positives are > less than 1% (and are mainly people sending remote images which is not > something we encouraged even if the message is innocent). > > > > > -----Original Message----- > > From: Woodruff, Michael [mailto:[EMAIL PROTECTED] > > Sent: 28 October 2003 17:13 > > To: Exchange Discussions > > Subject: RE: SPAM filtering on a budget > > > > > > http://www.nwfusion.com/reviews/2003/0915spam.html > > > > > > Here is how well they work in production. Not sure about pricing > > though, call em. > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Matt > > Plahtinsky > > Sent: Tuesday, October 28, 2003 11:22 AM > > To: Exchange Discussions > > Subject: SPAM filtering on a budget > > > > Hello list, > > I know SPAM filtering products have been covered in great > > detail but I'm > > having problems finding a good gateway SPAM filtering product > > that's not > > going to cost me a lot of money. I have a small > organization of about > > 100 users. The products that I have found that are > reasonably priced > > are Xwall ($360.00) and SpamAssassin (free). My problem with > > SpamAssassin is that I don't know the first thing about Linux > > so that's > > out of the question. Xwall seems like a good product but I > want a few > > more to compare. My budget won't allow for more than about $800.00. > > What cheep products are you using. Good/Bad experiences. > > Any help with > > my product search would be great. > > > > Thanks > > > > Matt > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Web Interface: > > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t > ext_mode=& > lang=english > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=&lang = english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang= english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
