McAfee OFFICE 3.1 User Manual download pdf (Page 36)

McAfee SaaS Email Protection Training Guide – Group Administrator Role

Proprietary and Confidential Page 6-14

6.7. Attachments

File Types

The File Types sub tab allows you to configure how the system reacts when it receives an email of a

specified attachment type or if an attachment violates attachment policies.

By default, all attachments which are not on the allow list are filtered with the selected action.

Attachments are scrutinized by filename, MIME content type and binary composition. This means a

destructive .exe cannot be hidden in a .doc file.

Filename Policies

The Filename Policies sub tab designates the rules for specific filenames. The structure allows you

to specify "custom" rules that override the global rules defined in the File Types tab.

Example: You may work with an outside vendor who sends you a .vbs script. However, there are

over 20 file extensions designated as scripts. By allowing Scripts on the File Types page, you are

allowing ALL of those script types. The Filename Policies allow you to create a rule, which only

allows only .vbs scripts.

Attachment-filtering policies are applied in the following order:

1. Filename policies.

2. Additional policies.

3. File Type policies.

Filename policies can be written to include files that:

 Is equal to the criteria entered

 Contains information

 Ends with a file type

Additional Policies

The Additional Policies sub tab designates the rules for Zip Files.

A zip attachment will be considered high risk if it violates any of the following rules:

 The zip file itself is too large (> 500MB)

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McAfee OFFICE 3.1 User Manual Page 36