Viruses and malicious threats are typically contained in executable file types. You can improve scanning performance by letting the file types that do not contain executables bypass scanning.
Symantec Messaging Gateway lets you create the lists that contain the file types that can bypass antivirus scanning. Multiple lists can help you categorize the file types.
When you create a list, select from the following preconfigured lists:
Symantec Messaging Gateway provides preconfigured file classes from which to choose.
An example of some file classes are as follows:
The All File Classes file class contains all of the file types in all of the file classes.
When you select a file class, the preconfigured file types for that class appear.
You can select all of the file types for a file class to include in the Exclude scanning list. Or you can select only the file types that you want to include in the list.
The list must be enabled if you want it to be used during scans. When you create a new list, it is enabled by default.
To exclude file types from virus scanning
In the Control Center, click Malware > Settings > Scan Settings.
Click the Exclude Scanning tab.
Click Add to create a definition of files for exclusion from virus scanning.
In the Exclude scanning list name box, type a name for the list.
In the File classes list, select the file class that you want to exclude from scanning.
To select multiple classes, hold down the Ctrl key while you click the names of file classes.
Perform one of the following tasks:
To exclude all file types in a class or group of classes
Click Add File Classes.
To exclude only certain file types
Click the file classes from which you want to exclude specific file types. Then select the file types from the File Types list.
Hold down Ctrl to select multiple file types.
Click Add File Types.
The names of the file types appear in the Description list.
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