While all solutions are viable, there are advantages to server-side filtering:
1. Less network traffic due to messages being filtered and not delivered. 2. Less load on mail servers due to fewer messages being delivered to end users 3. Potentially even less load on mail servers if header rejection is used to block some spam. 4. Aggregate information (better statistics) from many users/domains to hone filters for better detection, thus more accurate spam detection. 5. Less pain of setup and configuration for the end user. IMO, Good servers-side solutions can allow for all of the customization the end user wants without compromising the above advantages. Darin. ----- Original Message ----- From: "Panda Consulting S.A. Luis Alberto Arango" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, July 31, 2004 3:52 PM Subject: RE: [IMail Forum] Convert this to English please? Thanks for your prompt answer and comments. They are very useful to my analysis. Just to add to the post, with the client side software I am testing, no setting needs to be configured at the server. Email is delivered as is. The client starts training the software (Outlook shows 3 more buttons from the antispaming software) with what he/she considers to be spam or not. In a couple of days filtering starts working quite well and within a week it works very well. Regards, Luis > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:IMail_Forum- > [EMAIL PROTECTED] On Behalf Of Doug White > Sent: Saturday, July 31, 2004 2:12 PM > To: [EMAIL PROTECTED] > Subject: Re: [IMail Forum] Convert this to English please? > > Hello Luis; > > I am not sure I would have the solution you are looking for, however, that > is > the clients decision, I would think, and that is to use client-side spam > filtering. To handle it this way, you would need to set up your server > to > only flag suspected spam and perhaps add **SPAM** to the subject line or > in a > x-header. Modifying the subject line makes it easy for the client to > move > suspected spam to a junkmail folder for later review. > > I can not advise on Declude, because I do not use that software. > > Adding to my previous post, I currently have over 200,000 IP numbers (and > some > domain names) in our proprietary blacklist, and only 20 email addresses in > the > whitelist (By request of a client) To me, this is a very low false > positive > rate, and is considered acceptable by our subscribers, who do not wish > delivery > to the client of junk mail. The client is more likely to receive the > occasional spam that has not yet been picked up by our list. > > We use a Postfix gateway server which does the scanning and then relays > the > clean email to the customers' mail server. > > Doug ______ [Email scanned for viruses by Panda Consulting -www.pandacons.com-] [Email escaneado contra virus por Panda Consulting -www.pandacons.com-] 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/ 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/
