How to configure Anti-Spam in Kaspersky PURE 2.0?

 

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• How to change security level
• Email rating groups
• Security levels
• Useful references

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Kaspersky PURE 2.0 includes the Anti-Spam component which filters incomming emails and sorts it according to configures settings.

How to change Anti-Spam security level

In order to change the selected Anti-Spam component security level: 

1. Open the main application window.
2. On the upper right hand corner of the main application window, click the Settings link.
3. At the top of the Settings window, go to the Protection tab and select Anti-Spam.
4. Set the necessary security level.
5. On the Settings window,  click on the OK button.
6. Close the main application window.

You can also customize the spam rate for the spam and potential spam factors (to configure the Anti-Spam settings manuall, click on the Settings button). In this case the fourth security level  - Custom - different from the pre-set security levels recommended by Kaspersky Lab specialists will be added.

 

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Email rating groups

To filter messages, the Anti-Spam component uses two rating groups:

• Exact methods include databases containing info about e-mail addresses, web addresses, blocked phrases, phishing elements.

• Expert methods. These methods allow analyzing text and service data of email messages. The following methods are included:
  • Spam rate. The option detects if messages are spam or potential spam based on a specified spam rate.
  • Heuristic analysis. Anti-Spam analyzes messages using heuristic rules. Heuristic analysis is always enabled. You can find detailed info about heuristic analysis in KB7952.
  • Image recognition (GSG technology). GSG technology to detect graphic spam.
  • Analysis of attachments in RTF format. Anti-Spam analyzes documents attached to messages checking them for spam signs.

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Security levels of Anti-Spam

Kaspersky Lab specialists distinguish three security levels: 

• High. This security level should be used if you receive spam frequently; for example, while using free mail services. When you select this level, the frequency of false positives rises: that is, useful mail is more often recognized as spam. When analyzing a message for spam the Anti-Spam component calculates the potential rating:
  • If the rating exceeds 50 but does not reach 80, the message is considered to be potential spam.
  • If the rating exceeds 80, then such message is labeled as spam. On this security level attachments in .rtf format are also analyzed, i.e. Anti-Spam additionally analyzes files attached to the messages for the spam presence.

 

• Recommended. This security level should be used in most cases. When analyzing a message for spam the Anti-Spam component calculates the potential rating:
  • If the rating exceeds 60 but does not reach 90, the message is considered to be potential spam.
  • If the rating exceeds 90, then such message is labeled as spam.

 

• Low. This security level should be used if you rarely receive spam, for example, if you are working in a protected corporate email environment. When this level is selected, spam and potential spam messages are less frequently recognized. When analyzing a message for spam the Anti-Spam component calculates the potential rating:
  • If the rating exceeds 80 but does not reach 90, the message is considered to be potential spam.
  • If the rating exceeds 99 out of 100, then such message is labeled as spam.

 

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Useful references

What is Anti-Spam in Kaspersky PURE 2.0?
How to enable Anti-Spam in Kaspersky PURE 2.0?
What is heuristic analysis in Kaspersky PURE 2.0?

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Applies To:

• Kaspersky PURE 2.0