Determining email address for recipient at the time the message was sent

Hi,

I was sending a message to someone on a contact list where the contact's email was incorrect. So, after getting the failure notification, I change the contact and resend the message. Now, when I open the message that originally failed and look at the outlook properties for the recipient in the "To:" field, it opens the Outlook contact with the current (updated, correct) email address.

How can I find out what the email address was at the time the message was sent? i.e. what the wrong email address was.

Thanks,

Shawn