Configuring settings of message content filtering for a rule

To configure message content filtering settings for a rule:

In the main window of the application web interface, open the management console tree and select the Rules section.
In the rules list, click the name of the rule to open the rule for which you want to configure the message content filtering settings.
Select the Content filtering section.
Flip on the toggle switch next to the name of the Content filtering settings group if it is off.
To restrict transmission of messages containing attachments of a certain size:
1. In the If the allowed message size is exceeded settings group, click the Message size limit link to open the Attachment size scan limit window.
2. In the field under the window name, enter the maximum size of objects in the range from 0 KB to 1048576 KB (1 GB).
  If the value is set to 0 KB, no restrictions apply to the size of objects.
3. Click OK.
  The Attachment size scan limit window closes.
To restrict transmission of messages containing attachments of a certain format:
1. In the If attachment type is forbidden settings group, click the link on the right of the Forbidden formats of attachments setting to open the Forbidden attachment types window.
2. Select check boxes next to the formats of attachments the transmission of which you want to restrict.
  You can restrict transmission of messages with the following attachments:
  - Executable files (e.g., EXE; DLL; OCX)
  - Document files (e.g., DOC; XLS; PDF; PPT)
  - Multimedia files (e.g., AVI; WMV; MP3)
  - Graphic files (e.g., JPG; BMP; WMF)
  - Archives (e.g., ZIP; RAR; TGZ)
  - Databases (e.g., ACCDB; ACCDC; MDB)
  - Other files (e.g., TXT; CHM; HTM)
3. Click the Close button.
  The Forbidden attachment types window closes.
To restrict transmission of messages containing attachments with specific names:
1. In the If attachment name is forbidden settings group, click the link on the right of the Forbidden names of attachments setting to open the Forbidden names window.
2. In the field under the window name, enter the masks of names of attachments the transmission of which you want to restrict.
  Masks can contain any symbols. Separate masks with the ";" symbol.
  
  For example, you can enter the *.exe name mask to restrict transmission of messages that include attachments with the exe extension.
3. Click OK.
  The Forbidden names window closes.
Click the Apply button in the lower part of the workspace.

In order for the settings you have configured to be used during operation of Kaspersky Secure Mail Gateway, make sure that content filtering of messages is enabled for the rule and the rule for which you have configured settings is enabled.