We have a supplier we get frequent emails from. This supplier requests a read receipt every time we read their emails. Something weird happening though is that when our system sends out the receipt we have 1 out of 4 users where it adds a < to the beginning of the email address resulting in an undeliverables email reply.
The email is setup correctly on the users contacts but that shouldn't matter anyways. We have 3 other users who contact this supplier and I am able to see all of their read receipts in the log outbound and they are correct so I can only think it is a component of Outlook 2010. Have anyone ever seen this before?