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Thanks for your response.<br />
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Stopping SMTP looks like it may serve the purpose. &nbsp;Should I also stop MTA?
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Thanks for your response.

Stopping SMTP looks like it may serve the purpose.  Should I also stop MTA?

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I am going to do an offline defrag on our Exchange database. &nbsp;Before I do that I will be performing a backup. &nbsp;I want to leave the information store mounted so the logs are purged during the backup but I want to block any activity during this time in case a recovery is necessary.<br />
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Should I stop one or more of the services or are the logs not important and I should dismount the store before the backup?
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I am going to do an offline defrag on our Exchange database.  Before I do that I will be performing a backup.  I want to leave the information store mounted so the logs are purged during the backup but I want to block any activity during this time in case a recovery is necessary.

Should I stop one or more of the services or are the logs not important and I should dismount the store before the backup?

Backing up Exchange 2003

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.