In Exchange 2010 Toolbox among other tools they have Queue viewer and also message tracking.
if someone has sent a message from outside but not received by an internal user, or the other way around, do we need to use queue viewer or message tracking..
in queue viewer, there is a submission queue, under the next hop domain, and there are other queues, but I am not sure on how to search for an email inside the queues, or in general in the queue viewer.
I am not even aware when the queue viewer is supposed to be used by Exchange administrator.
Any guidance on this will be very much appreciated.