Windows XP Pro SP2, using Outlook 2003.
Connected to SBS 2003 R2, Exchange 2003 sp2.
User intermittently sees duplicate emails sent from Outlook. Both new messages and replies to messages sometimes result in duplicate messages.
I have not been able to duplicate the problem from her machine.
Is possible that user is actually double clicking the 'Send' button. Unable to confirm this though.
No other user in this domain or using this Exchange server complains about similar issues.