Exchange Email problem - Message awaiting directory lookup queue
Posted on 2009-04-17
We have 3 exchange servers. Two of them are on exchange 2000 and one of them is exchagne 2003 which i recently built and migrated few users on that new exchange servers (not all users yet). All was running fine since last night when i replicated public folders using PFDAVadmin to the new exchange and we are now getting following problem:
we have long delay sending emails internally to each other. We noticed that we have more than 1000 messages sitting in the "message awaiting directory lookup" queue. By forcing the queue it goes down but then again start building.
By looking these messages from the queue found that lots of messages are same sender information and refering from sender CN=MICROSOFT PUBLIC MDB are sitting and going in/out from the awaiting directory queue. This seems all related to public folder wrong routing/replication issue.
Also noticed that public folder database (pub1.mdb) size is increasing in every second on the new exchange 2003 server.
How can i stop this replication or etc..
Can you please help, its urgent.