Working with Queues

As an Exchange administrator, it’s your responsibility to monitor Exchange queues regularly. Hub Transport and Edge Transport servers use queues to hold messages while they are processing them for routing and delivery. If messages remain in a queue for an extended period, there could be a problem. For example, if an Exchange server is unable to connect to the network, you’ll find that messages aren’t being cleared out of queues.

Understanding Exchange Queues

As discussed in the “Working with the Exchange Server Message Queues” section of Chapter 5, “Microsoft Exchange Server 2007 Administration Essentials,” queues are temporary holding locations for messages that are waiting to be processed, and Exchange Server 2007 uses an Extensible Storage Engine (ESE) database for queue storage. Exchange Server 2007 uses the following types of queues: