Applies to Kaspersky PURE R2
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 include such elements as Spam rate, heuristic analysis, text recognition analysis and analysis of attachments in .rtf format
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.

You can also customize the spam rate for the spam and potential spam factors. In this case the fourth security level -
Custom - different from the pre-set security levels will be added.

In order to change the selected
Anti-Spam component security level:
- open the main application window
- on the upper right hand corner of the main application window, click Settings
- on the upper part of the Settings window, select Protection
- on the left hand part of the window, select Anti-Spam
- in the left hand part of the window, select Anti-Spam
- set the necessary security level
- on the Settings window, click OK
- close the main application window.
