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MJones

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I am quite new to Kerio Mail Server and spam settings. Although there seem to be an almost infitate combination of settings, I would be grateful of some suggested typical settings from the real world that people are happy with.
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winkelman

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I treat anything scoring above 5.0 as spam by adding the spam header (I do not change the subject).

I do not use any of the blacklists.

I could probably tweak it to catch more spam, but I don't have the time for that. The above is very simple and works okay.
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Kerio_ktrumbull

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As an example, here in the office we use a threshold of 2.8. The key is using the Spam/Not Spam buttons religiously. This helps train the Bayes filter to properly identify email as spam or not spam. The Bayes filter is trained globally, so encourage all of your users to mark messages as spam or not spam.

I hope this helps.

Kevin Trumbull
Kerio Technical Support Team Leader
http://support.kerio.com
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peterj

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Hi ktrumbull,

Are you a new Kerio employee?

If so which product do you primarily focus on?

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Kerio_ktrumbull

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Yes I am a relatively new employee. I've been with Kerio for a couple of months now. I work in the US office as a Tech Support Engineer, so I support all of our products.

Kevin Trumbull
Kerio Technical Support Team Leader
http://support.kerio.com
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mailhog

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When speaking of marking as spam/not spam, do the features in Entourage (and/or Outlook) for marking Spam get included in the training, or is it only in webmail? We are testing the server on all Macs, to include Entourage as the desktop client.
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peterj

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When using webmail or Outlook + KOC you can use the bayes training.


This is not possible AFAIK from Entourage 'tho
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Kerio_jthomas

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Kerio US spam settings:

Threshold: 2.8
Blacklists: All of them, postive match => increase score by 3.0
CallerID: Enabled, invalid record => block
SPF: Enabled, check failed* => block
Spam Repellant: Enabled, 30 second delay

* KMS's SPF check right now treats "softfail" the same as "pass". I think distinguishing between the two will be in a later version. Only a "hardfail" is treated as a failure.

We block a very high precentage of our spam. I've slowly lowered the threshold from 5.0 to 2.8, which is as low as we can go before getting an unacceptable number of false positives. We get 1 to 2 false postitives a month (as far as I can tell).




Joshua Thomas
Technical Support Manager
2350 Mission College Blvd, Suite 400
Santa Clara, CA 95054
Phone: (408) 496-4500
Fax: (408) 496-6902
http://www.kerio.com/support.html

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Kerio_ktrumbull

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It is possible to train the Bayes filter using Entourage in both Exchange Mode and regular IMAP mode. You do this by moving a message to or from the Junk Email folder. This also applies to any other mail client that uses IMAP (such as Thunderbird).

[Updated on: Wed, 16 November 2005 01:46]


Kevin Trumbull
Kerio Technical Support Team Leader
http://support.kerio.com
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