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Working with Filters and Policies > Managing filters > Creating and configuring a filter > Email attachment
Email attachment
An email attachment policy filter allows Forcepoint Email Security to examine email attachment content and determine an attachment's true file type. The filter is triggered when a specified true file type is detected. Configure the email attachment filter on the page Main > Policy Management > Filters > Add (or Edit) Filter.
An additional option is available to designate an individual file attachment extension or filename allows the filter to detect the specified extension or filename. However, attachment content is not inspected for true file type when this option is enabled.
Configure email attachment filter analysis
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.

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Working with Filters and Policies > Managing filters > Creating and configuring a filter > Email attachment
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