User guide

A D V A N C ED A P P L I C A T I O N S E T T I N G S
109
SELECTING THE SPAM RECOGNITION ALGORITHM
The Anti-Spam mail analysis is based on the selected recognition algorithms:
Heuristic Analysis. Anti-Spam analyzes messages using heuristic rules. Heuristic analysis is always enabled.
Image recognition (GSG technology). Anti-Spam uses GSG technology to detect graphic spam.
Analysis of attachments in .rtf format. Anti-Spam analyzes documents attached to messages checking them
for spam signs.
Self-training text recognition algorithm (iBayes). Operation of the iBayes algorithm is based on the analysis
calculating the frequency of words typical for spam in the text of the analyzed mail. The analysis identifies each
message as useful mail or spam. To start using the iBayes algorithm, you should train Anti-Spam (see section
"Training Anti-Spam" on page 99).
To enable / disable a specific spam recognition algorithm for analysis of email messages:
1. Open the main application window.
2. In the top part of the window, click the Settings link.
3. In the left part of the window, in the Protection Center section, select the Anti-Spam component.
4. Click the Settings button in the Security level section in the right part of the window.
5. In the window that opens, on the Expert methods tab, in the Recognition algorithms block, check or uncheck
the corresponding boxes.
ADDING A LABEL TO THE MESSAGE SUBJECT
Anti-Spam can add appropriate labels to the Subject field of the message recognized after analysis as spam or potential
spam:
[!! SPAM] – for messages identified as spam.
[?? Probable Spam] – for messages identified as potential spam.
When present in message subject, such labels can help you distinguish spam and probable spam visually while viewing
the mail lists.
To enable / disable addition of labels to the message subjects by Anti-Spam:
1. Open the main application window.
2. In the top part of the window, click the Settings link.
3. In the left part of the window, in the Protection Center section, select the Anti-Spam component.
4. Click the Settings button in the Security level section in the right part of the window.
5. In the window that opens, on the Additional tab, in the Actions section, check the boxes next to the labels,
which should be added to message subject. Having checked the box, you can modify the associated label text.
To prevent label addition, uncheck its corresponding box.