Microsoft Exchange server 2003 Queues listing

from : How to use Queue Viewer to troubleshoot mail flow issues in Exchange server 2003

Queue: Messages pending submission
Queue: Messages awaiting directory lookup
Queue: Messages waiting to be routed
Queue: Local delivery (the domain name may appear) 
Queue: Remote delivery queue 
Queue: Messages with an unreachable destination
Queue: Messages queued for deferred delivery
Queue: DSN messages pending submission
Queue: Failed message retry
Queue: Failed message retry
Queue: PendingRerouteQ (X.400)