You can use To or ReceivedByName in the Outlook object model, but both may
just be alias names and not the actual email address. You could access the
Recipients collection and check the Address property of each recipient, but
there could be more than 1 recipient of course.
The actual MAPI property you would need would be
PR_RECEIVED_BY_EMAIL_ADDRESS (0x0076001E), which could be accessed using CDO
1.21 or Extended MAPI or a MAPI wrapper such as Redemption.
[MVP - Outlook]
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options