User`s guide

If you suspect the problem is with the BitDefender firewall, you can contact
BitDefender for support as described in section “Support” (p. 316).
35.4. Antispam Filter Does Not Work Properly
This article helps you troubleshoot the following problems concerning the BitDefender
Antispam filtering operation:
⚫ A number of legitimate e-mail messages are marked as [spam].
⚫ Many spam messages are not marked accordingly by the antispam filter.
⚫ The antispam filter does not detect any spam message.
35.4.1. Legitimate Messages Are Marked as [spam]
Legitimate messages are marked as [spam] simply because they look like spam
to the BitDefender antispam filter. You can normally solve this problem by adequately
configuring the Antispam filter.
BitDefender automatically adds the receivers of your e-mail messages to a Friends
List. The e-mail messages received from the contacts in the Friends list are
considered to be legitimate. They are not verified by the antispam filter and, thus,
they are never marked as [spam].
The automatic configuration of the Friends list does not prevent the detection errors
that may occur in these situations:
⚫ You receive a lot of solicited commercial mail as a result of subscribing on various
websites. In this case, the solution is to add the e-mail addresses from which you
receive such e-mail messages to the Friends list.
⚫ A significant part of your legitimate mail is from people to whom you never
e-mailed before, such as customers, potential business partners and others. Other
solutions are required in this case.
If you are using one of the mail clients BitDefender integrates into, try the following
solutions:
1. Indicate detection errors. This is used to train the Learning Engine (Bayesian) of
the antispam filter and it helps prevent future detection errors. The Learning
Engine analyzes the indicated messages and learns their patterns. The next
e-mail messages that fit the same patterns will not be marked as [spam].
2. Decrease antispam protection level. By decreasing the protection level, the
antispam filter will need more spam indications to classify an e-mail message as
spam. Try this solution only if many legitimate messages (including solicited
commercial messages) are incorrectly detected as spam.
3. Retrain the Learning Engine (Bayesian filter). Try this solution only if the previous
solutions did not offer satisfactory results.
Troubleshooting
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BitDefender Internet Security 2010