Retrieving rejected mail in Exchange 2007

Hi,

I created a distribution list in Exchange 2007 that was our email address listed on our website. When I did so, I did not realize the default behavior was to require authentication to send to that dl, so all the emails that were sent to the dl were rejected. Is there any way I can recover those emails? I can see them in the email tracking logs, but can I get the actual contents of the emails? Any help would be greatly appreciated.

~Pat