Message Quotas

Updated: June 25, 2007

Applies To: Windows Server 2008

Message storage limits can be set by configuring the following:

Computer quota

This quota specifies the cumulative limit for all messages stored in destination queues, outgoing queues, and queue journals on a computer. After a computer quota is reached, no messages can be delivered to any queue or journal on the computer. The computer quotas can be set for Message Queuing servers and independent clients. Following a new installation of Message Queuing, or an upgrade from Windows 2000 or Windows Server 2003, the default limit for these storage sizes is 8 gigabytes (GB). For more information, see Message Storage. Computer quotas are set separately to limit message storage size and journal size. When you set the journal storage size limit for a computer, you automatically set equal quotas for the computer journal (the Journal messages queue), the dead-letter queue, and the transactional dead-letter queue. For instructions on setting the message storage limit for a computer, see Set the Message Storage Size for Computers. For instructions on setting the journal storage size for computers, see Set the Journal Storage Size for Computers.

Queue quota

This quota specifies the cumulative storage size (number of bytes) available for all messages stored in a particular queue, whereas a computer quota limits the total storage available for all messages in destination queues, outgoing queues, and queue journals on the computer. When a queue quota is reached, messages can no longer be sent to the queue until one or more messages are retrieved (removed from the queue by a Message Queuing application). Queue quotas can be set for all queues. Queue quotas for journal queues and other queues are set separately. For instructions on setting the quotas for regular messages, see Set the Message Storage Size for Queues. For instructions on setting the journal storage size for a queue, see Set the Journal Storage Size for Queues.

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