Freeze and Unfreeze an Entire Queue
When you freeze an entire queue, all messages that are currently in a queue will not be delivered. Frozen queues can continue to accept messages, but the messages won't be delivered until the queue is unfrozen. The messages inside a frozen queue will not be in a frozen state themselves.
To stop (freeze) or re-start (unfreeze) the transfer of all messages in a queue:
For SMTP queues
For X.400 queues
For MAPI (connector) queues
Note X.400 queues cannot be frozen.
|Freeze Messages||Messages will be trapped inside the
queue. No delivery will take place until the messages are
For example, if one or more large messages have temporarily blocked the queue, you can freeze the large messages to allow Exchange to transfer the other messages. Then with more resources available, Exchange will be able to send the larger messages.
|Unfreeze Messages||Remove the temporary "hold" on the transfer of messages.|