XnetSolutions SX-GATE, Руководство пользователя

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14.5.3 SPAM/Virus/Malware 372
Do not activate this feature when your internet connection is
a rather expensive dial-up link. For each email, the Razor2
checksum will be sent to the internet, even for internal emails.
Thus the dial-up link will be online frequently which results in
high expenses.
Enable Bayes filter
If enabled, the SPAM filter autonomically learns additional characteristics of unsolicited
mail (SPAM) and requested mail (HAM) while processing inbound emails. Only mails
with a score of more than 10 or 0 and less are considered respectively.
At least 200 SPAM mails and 200 HAM mails have to be learned
before the Bayes filter is taken into account.
With this feature it also becomes possible to learn unrecognized SPAM and emails
which have been tagged as SPAM by mistake. A user account with mail permission
(group system-mail) on SX-GATE is required and either IMAP or the SX-GATE
webmailer must be used to access the mail account.
In the user administration there's an option which makes SX-
GATE deliver SPAM into the "SPAM" folder. The folder will be
created automatically if necessary. We recommend that you
enable this option.
The webmailer offers a button for learning unrecognized SPAM. After learning, the
SPAM will be moved to the "SPAM" folder. When inside the "SPAM" folder, there's a
button to learn mails which have been classified as SPAM by mistake and move the
mail into the inbox.
Using IMAP, you will have to add special mail folders. Move unrecognized SPAM into a
folder named "SPAM". A copy of mistakenly tagged emails goes into the "HAM" folder.
Even if Bayes filtering is not active, the folders "SPAM" and "HAM" will be renamed
daily, just after midnight. A brief overview of the folders' contents will be mailed to the
corresponding user. At the same time, the Bayes filter will learn the contents of these
folders, if enabled. After one week, the folders will be deleted automatically.
Yesterday's folders get the name extension ".1", the folders of
the day before get ".2" etc. until ".7".