Configure email attachment filter analysis

Steps

  1. From the section Filter Properties, mark the check boxes for the true file types that the filter should detect.

    Expand top-level categories; click the plus sign.

    Select all file types in a category; mark the check box for the top-level file type.

    Select all categories; at the top of the URL Categories list, mark the check box All file types.

  2. (Optional) In the field Find file type, enter a file type category or extension to search the list of file types.
  3. Allow the filter to examine the contents of archive files; mark the check box Analyze archive files.

    This option is enabled by default.

  4. In the field Custom filenames and extensions, enter a comma-separated list of any custom filenames or file extensions that the filter should detect.
    Wildcard entries (*) are not supported.
  5. From Filter response, select the desired filter response:
    • Remove specified file attachments
    • Take no action

      This is the default.

  6. From the bottom of the section Filter Properties, click Advanced. The Advanced settings display.
  7. Send a notification email when an email message triggers the filter; mark the check box Notify recipient that the delivered email message contained a file attachment that triggered a filter.
  8. In the text box, keep the default notification text or enter a custom message.
  9. Select the location for the notification text:
    • Insert notification at top of message
    • Insert notification at bottom of message
  10. Configure additional filter settings and click OK. The email attachment filter is saved.