[Users] Using Variables when creating X- email headers in Claws Mail Program

[Keith]

I need to add an X-whatever: headers to my emails that will list the date
and name of the From sender in it. I have tried using $DATE and %d, but it
doesn't work. Does any one know how to accomplish this with CLAWS? 

Version: 14th December 2013 Claws Mail 3.9.3

Thank You.

Keith