When sending a fax through Fax Thru Email, you can create a cover sheet for your fax through the application itself.
Note: Selecting a different cover sheet template while sending a fax does not change the default template. To change the default template, select the template through your fax settings. For more information, see Setting Your Cover Sheet Options.
For more information about sending a fax, see Sending Faxes Using Fax Thru Email.