The easiest way to do this would be to set up a rule in the mailbox that's receiving the message and have it forward the received message to the administrator.
If you want to do it programmatically, you would need access to the Inbox of that mailbox and could then monitor it with the usual MAPIFolder.Items.ItemAdd event.

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Sue Mosher, Outlook MVP
Author of Microsoft Outlook Programming: Jumpstart
for Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> I have an Excel form that sends to a designated mailbox
> when the user clicks a button. I have the recepient
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> Thanks!
> Kathryn