Other's here may have had good luck with statistical filter, I did not. One of the reasons I added ASSP(assp.sourceforge.net) to handle our spam is it automates much of the statistical filter nonsense. You still have a spam folder and a notspam folder to capture email in but ASSP does it for you and with a regularly scheduled(nightly in my case) rebuild of the spam database, it keeps up to date on what spam is coming in. This is fine for a small group of users in a company as is my setup(~200), not necessarily for a group of different domains as an ISP might manage with very different ideas as to what is spam.
One of the nicer aspects of ASSP is the automatic whitelist addition. This builds a database of people your company sends email to and allows all email from those whitelisted emails. Additionally it can modify the subject line to easier identify spam to the end user so they can use it's email interface to help train the system quickly. All this and attachment blocking too which is the initial reason I added ASSP. :o) While it's still a step down in the simple effectiveness from the other big3 products(Declude, IMGate, MXGuard) available to Imail users, due to it's being free and requiring no additional hardware, it's easy to add to an existing Imail server. I do recommend not using Imail's statistical filtering if you use ASSP. No point in doing it twice. The downside? If you put anything in front of Imail in the flow of email, Imail will no longer know what the connecting mailserver is for the DNSBL filters to work unless you purchase Declude, so I do without DNSBL. ASSP has the ability to compare connecting mailservers to a community developed list they call the "Greylist" which has a score assigned to the different IP addresses on the list. The more spam, the higher the score, and this is added to the overall score of the email. This list is automatically downloaded regularly to be kept fresh. Unfortunately, ASSP, like Imail, cannot see through another gateway if you have something in place in front of ASSP, but most users have ASSP acting as the gateway anyway so this is not as much of a problem. All this, in combination with Imail's URL and Phrase blacklists and implementing the new advanced options from Admin-ML, should be a very effective antispam protection. See: http://www.mail-archive.com/[EMAIL PROTECTED]/msg81565.html and then: http://www.mail-archive.com/[EMAIL PROTECTED]/msg81628.html Douglas Traylor MIS Department Harbison-Fischer Mfg Co. (817)297-2211 x210 ----- Original Message ----- From: "Dave Hauss" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, March 22, 2004 7:55 AM Subject: [IMail Forum] Statistical Filtering Settings? > I sent a message the other day about the Statistical Filtering Settings and > what is the best way to set this up. Someone said I have to train it for > every user. I don't see how that is done in email. That would be a look of > work for over 300+ users. I set it up for the following settings in IMAIL > ADMIN: > > > > Probability new word is spam 80% > > An Email is spam when its calculated prob exceeds 85% > > Max # of works to use 15 > > > > I am using the files for phrases and words etc that come from ipswitch. Are > these the best settings and if not what do U need to do? It's catching some > spam and letting others through. > > > > Please email me back with any suggestions at [EMAIL PROTECTED] > > ______ > > Dave Hauss > > www.pinehill.k12.nj.us > > Pine Hill School District > > MIS Building > > 1202 Turnerville Road > > Pine Hill NJ 08021 > > (856) 719-2103 > > (856) 719-2111 [Fax] > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
