scan_conditions_attachments

Selecting Scanning Conditions for Attachments

IMSVA can filter email traffic based on the files attached to messages.

To specify scanning conditions for attachment names or extensions:

Under Attachment on the scanning conditions selection screen, select the check box next to Name or extension.
Click Name or extension. The Attachment Name or Extension screen appears.
Next to Select, select one of the following:

Selected attachment names: IMSVA takes action on email messages with attachments of the selected names.
Not the selected attachment names: IMSVA takes action on email messages with attachments that are not of the selected names.

Select the check boxes next to the attachments to scan or not scan.
To add your own attachment name, do the following:

Select the check box next to Attachments named.
Click Import to import from an existing text file. Another window appears.

Alternatively, type the names in the text box. Use a semicolon (;) to separate values. You can also use an asterisk wildcard for the extension. See Using the Asterisk Wildcard for more information on using wildcards.

Click Save.

Click Save to continue selecting scanning conditions.

To specify MIME content type scanning conditions:

Under Attachment on the scanning conditions selection screen, select the check box next to MIME content type.
Click MIME content type. The Attachment MIME Type screen appears.
Next to Select, select one of the following:

Selected attachment types: IMSVA takes action on email messages with attachments of the selected types.
Not the selected attachment types: IMSVA takes action on email messages with attachments that are not of the selected types.

Select the check boxes next to the MIME content types to filter.
To add your own MIME types, type them in the text box. Use a semicolon (;) to separate values. You can also use an asterisk wildcard for the MIME type.
Click Save to continue selecting scanning conditions.

To specify true file type scanning conditions:

Under Attachment on the scanning conditions selection screen, select the check box next to True file type.
Click True file type. The Attachment True File Type screen appears.
Next to Select, select one of the following:

Selected attachment types: IMSVA takes action on email messages with attachments of the selected types.
Not the selected attachment types: IMSVA takes action on email messages with attachments that are not of the selected types.

Select the check boxes next to the true file types to filter.
Click Save to continue selecting scanning conditions.

To specify attachment size scanning conditions:

Under Attachment on the scanning conditions screen, select the check box next to Size is {>, <, =} {size} {MB, KB, B}.
Choose the comparison symbol (>, <, =).
Type a number to represent the size.
Choose Megabytes, Kilobytes, or Bytes (MB, KB, B).
Continue selecting scanning conditions.

To specify attachment number scanning conditions:

Under Attachment on the scanning conditions screen, select the check box next to Number is {>, <, =} {number}.
Choose the comparison symbol (>, <, =).
Type a number to represent the number of attachments.
Continue selecting scanning conditions.

To block password protected files:

Under Attachment on the scanning conditions screen, select the check box next to Password protected zip files.