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Few Questions

Printed From: LogSat Software
Category: Spam Filter ISP
Forum Name: Spam Filter ISP Support
Forum Description: General support for Spam Filter ISP
URL: https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=3600
Printed Date: 13 May 2025 at 12:21pm


Topic: Few Questions
Posted By: Guests
Subject: Few Questions
Date Posted: 11 May 2004 at 9:43pm

First off, I'm kind of new to the whole spam filtering realm.  I've been looking at several products and this seems to be the first reasonably priced solution for a growing mailbox count. 

I host many websites and almost all have their own MX records.  All my clients have their own smtp address.  Is their a way to setup this product to handle multiple domains and then redirect them to the correct smtp address on the server? 

My other question is can someone explain how that I can feed the bayesian filter?  I have thousands of spam emails in my deleted items that I could feed the "bad" filter and then feed the "good" filter all the non spam email.  I know everyone keeps saying it's self learning, however can someone explain exactly how it knows what is good to what is bad if their isn't a way for the administrator to say good or bad?

Thank you in advance,

WaltD




Replies:
Posted By: Guests
Date Posted: 12 May 2004 at 1:36pm

Disregard the first question about the multiple domains.  I think I have figured this out. 

I would still like a better explination on the Bayesian filter though.

Thanks,
WaltD

Walter Draffin, Jr.
Network Integrity



Posted By: LogSat
Date Posted: 13 May 2004 at 12:22am

Walter,

Assuming you have the first question figured out, the Bayesian filter initially learns from the existing, older-style, filters. Using MAPS RBL filters, along with keyword lists and possibly rejecting initially emails from server without revese DNS entries, will already cause SpamFilter to detect a LOT of spam. The statistical filter learn from this traffic, and is "primed" with an initial database as your traffic builds up. Once a valid "statistical sample" of a few thousand emails has been processed, the filter will be able to detect spam by itself (even though we recommend leaving the other filters in place to have better accuracy).

You most likely cannot add existing emails as (1) some emails clients, like MS Outlook, completely change the email source of the original message, and DNA fingerprinting requires an exact match of the source, and (2) by feeding only bad emails, and not the good ones that every now and then you were receiving inthe midst of the bad ones, cases all the statistical formulas to be "thrown off" and would thus yeald very inaccurate results.

Roberto F.
LogSat Software




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