Configuring exclusions from an attachment and content filtering rule

Expand all | Collapse all

To configure exclusions from an attachment and content filtering rule:

1. In the Management Console tree, select the node of the relevant Security Server.
2. Select the Server protection node.
3. In the workspace, select the Protection for the Transport Hub role tab.
4. In the Attachment and content filtering drop-down section, select the rule to which you want to apply changes, and select the Exclusions tab.
5. In the Add a condition drop-down section, select the criteria by which the application will exclude an object from scanning:

   File name mask

   Configuring filter exclusions by name or extension of the attached file.

   When this menu item is selected, the button becomes available. Clicking this button opens the File name masks window in which you can manually specify file names and/or file name masks. You can also import a list of names and / or file name masks in TXT format. The specified names and / or file name masks are displayed in the Files with the following masks field.

   The application will not apply the filtering rules to attached files that match the specified names or name masks.

   Individual senders

   Configuring filter exclusions by email address, name, or account of the message sender.

   When this menu item is selected, the button becomes available. Clicking this button opens the Senders window in which you can specify the SMTP address, name, or account of message senders. You can also import a list of addresses from a previously exported file. The specified values are displayed in the Do not apply the rule to messages from the following senders field.

   The application will not apply the filtering rules to messages from the specified users.

   Individual recipients

   Configuring filter exclusions by email address, name, or account of the message recipient.

   When this menu item is selected, the button becomes available. Clicking this button opens the Recipients window in which you can specify the SMTP address, name, or account of message recipients. You can also import a list of addresses from a previously exported file. The specified values are displayed in the Do not apply the rule to messages for the following recipients field.

   The application will not apply the filtering rules to messages addressed to the specified users.

   File format

   Configuring filter exclusions by format of the attached file.

   The application recognizes the format of a file by its structure, that is, by the way it is stored or displayed on the screen. This allows you to filter attachments even if the extension of an attached file does not match the actual type of the file (for example, if the extension has been changed intentionally).

   When this menu item is selected, the button becomes available. Clicking this button opens the File formats window in which you can select the file formats that the application will exclude from filtering. The selected formats are displayed in the Do not apply the rule to files of the following formats field.

   The application will not apply the filtering rule to objects that meet at least one of the exclusion conditions.

6. To delete an exclusion condition, click the button next to the relevant criterion.
7. Click the Save button.

The settings of filtering exclusions are saved.