The header fThe header information from inbound mail no longer contains (after a move from Exchange 2003 to Exchange 2007) the name of the mail client the email was sent from. How is it possible to implement this feature? Here's what the portion of the header looks like when enabled: X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3598 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350