Question : Your message was read on Monday, Month Day Year

I have exported all mail for someone using Exchange 2007, and they are trying to read the inbox. However, half the messages say "Your message was read on Monday, Month Day Year" where Month Day Year is the time.

How do I revert this?

Answer : Your message was read on Monday, Month Day Year

Sounds to me like the user had requested read receipts on all outgoing mail and you are seeing the confirmations.