Int 16 Fn 4500  - Shamrock Software EMail - Get Status                     [e]

   AX = 4500h
   DL = port number (01h = COM1)
   ES:BX -> 13-byte buffer for ASCIZ name

Return: AX = 4D00h if EMAIL installed on specified port
       ES:BX -> "" if no connection
         -> "*" if connection but caller has not identified name
         -> name otherwise
       CX = version (CH = major, CL = minor)
       DL = privilege level of user (00h = guest)
       DH = chosen language (00h German, 01h English)

See Also: AX=4501h,AX=4502h