Our company has an archiving solution that "appears" to be archiving duplicate emails sent from an Exchange 2000. I say "appears" because upon checking more closely the message IDs are unique even though the message headers "appear" to be the same except for the message IDs.
The Logs in our inbound message router shows 2 email envelope headers with different recipients on each as if the original message was being "split" by Exchange. I Googled and found some information that states that Exchange does split messages when different filtering options are applied based on group membership.
Is there a setting in Exchange that does this ? but more importantly how can I pin point and prove where the message is being "split"? Exchange folks say it's the IMR and vice versa.
All comments welcome.