William,
Are you purely using Len's ImGate as a virtual domain checker or do you
also check on validating Gateway'd domains? Just wondering how this is
accomplished using Len's ImGate as there are no physical accounts on Imail for
a Gateway domain. Thanks for the aid.
Keith________________________________ From: [EMAIL PROTECTED] on behalf of William Van Hefner Sent: Fri 9/16/2005 1:43 PM To: [email protected] Subject: RE: [IMail Forum] User configurable spam filter It should be easy enough to set this up using Imail's rules (ver. 8.05+) without the need of Declude. Exactly what your filtering parameters are for identifying spam will dictate what rules you would be using. I concur with the other poster though. Few people ever check spam folders. However, I do not agree that sending all of the (tagged) spam through is the best way to deal with things, either. That is a tremendous waste of bandwidth, processing power, disk space, etc., and it just encourages spammers to send more e-mail, since they (rightfully?) assume that such mail is actually being delivered. Personally, I would recommend setting something up like Len's Imgate in front of your Imail box, and tie that in to your existing rules, along with something like Spamassassin to REJECT mail that is obviously spam. Using a web interface like Maya Mailguard will allow per user and per domain blacklisting, whitelisting, antivirus control and the setting of individual levels of spam filtration. You can flat-out reject high-scoring spam (the infrequent legit sender gets a bounce message explaining why their message was not delivered) and tag moderate-scoring spam on the Subject: line. SA will run a variety of tests, including RBLs, RHSBLs, heuristics, Razor, Pyzor, custom filters you create or can download off of the net, Bayesian filtering, and a ton more. Len's basic scripts will at least block the stuff that is so ridiculous as to not even be considered for delivery (spammers that forge your IP address in the HELLO should never be allowed to send you mail, and you will get hundreds of those a day). Imail does some nice stuff, but I am starting to look at it more and more as a POP3 and final destination server, rather than something I would use alone to fight spam. If nothing else, why subject your main mail server to dictionary attacks, viruses, DOS attacks, port scans, or have to expend its CPU on chewing through an increasing number of rules, or store a bunch of spam that no one really wants to see? Any old *nix box (or two) will improve your server's performance markedly, and shave as much as 50% off of your bandwidth costs. The cost is cheap. The software is free. It works significantly better and is way more stable. You will need to get your "hands dirty" an learn a little about Linux/FreeBSD and Postfix, but not much. It's certainly been worth it to me. William Van Hefner Network Administrator Vantek Communications, Inc. e-mail: [EMAIL PROTECTED] > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Mike Odryna > Sent: Friday, September 16, 2005 6:50 AM > To: [email protected] > Subject: [IMail Forum] User configurable spam filter > > > I was looking through the archives for a solution where as > SPAM is sent to the SPAM folder in the users account. The > user then can periodically check that folder for false > positives and have the ability to mark the mail as good or > bad which ever the case may be. > > It was stated that Declude has this functionality already > built in. Can someone confirm that? And it does, can you > post some screen shots on how it looks when setup. > > Thanks in advance. > > Mike Odryna > Owner > LakeSpeed.Com > http://www.lakespeed.com > (603)635-8700 > > > > 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/
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