Alexey,

In theory you could "inject" emails manually in SpamFilter to tweak the Bayesian filter, but that is usually a very bad idea. The Bayesian filter examines statistically the full email, headers included. Your artificial emails would not typically reflect the same content a true spam email will have. The headers may be different, if you copy and paste the content of an email from MS Outlook for example, the original source of the email will be very different since Microsoft Outlook completely changes the source, etc...

Roberto F. LogSat Software

Alexey,

As I've stated, yes, you can inject emails if you want, but we do not feel it's usually a good idea. Bayesian filters are usually very accurate because the mathematics they are based on assume a real case scenario of text received. If you alter the real life by forcing certain tokens to receive a higher spam score, you risk altering the way a legitimate email is analyzed. If for example a legitimate email contains one of the tokens you artificially modified, the overall spam score assigned to it will not be accurate.

If however you feel confident that artificially altering some of the tokens will help the accuracy, you're absolutely free to try. Any email that SpamFilter processes is analyzed by the Bayesian engine. If you wish to inject tokens as spam, you can simply create an artificial email and for example change any of your blacklists so that it is blocked, which will cause the Bayesian filter to categorize the tokens as spam.

As far as your last question is concerned, mail blocked by the Bayesian filter will be quarantined if the quarantine database is configured, otherwise it will be rejected.

Roberto F. LogSat Software

Alexey,

You don not have to turn on quarantine in order for the Bayesian filter to work. You just need to let the other filters (SpamFilter comes with default settings that will already catch a lot of spam) to their job. As emails arrive and are blocked, the bayesian filter will learn and eventually kick in as well.

Roberto F. LogSat Software

SpamFilter has several other filters that block spam. For example the MAPS servers, the "No Reverse DNS" server, the keyword filters. All of these will block spam, even if the quarantine is disabled.

Please also note that all the quarantine does is to save a copy of blocked emails in a database so they can be retrieved later.

Roberto F. LogSat Software