Format of Da Vinci eMail "NetSubmitName" parameter block:
Offset	Size	Description	)
 00h	WORD	segment of uppercase password string
 02h	WORD	offset of uppercase password string
 04h	WORD	segment of uppercase username string
 06h	WORD	offset of uppercase username string
 08h	WORD	segment of "DVSEMAIL"
 0Ah	WORD	offset of "DVSEMAIL"