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It ended up being GFI MailEssentials... &nbsp;After reading your post I knew that wasn't my problem for that drive has plenty of free space.<br />
<br />
Thanks.
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It ended up being GFI MailEssentials...  After reading your post I knew that wasn't my problem for that drive has plenty of free space.

Thanks.

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Does back pressure on Exchange 2010 occur when the volume where the mailbox database is stored or only on the application volume where the queue and/or the location of the Exchange install? &nbsp;I only have 30 GBs out of 330 GBs available on my mailbox drive (not the same as the c: drive) and outside emails are not processing. &nbsp;Wouldn't back pressure make all emails not process?
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Does back pressure on Exchange 2010 occur when the volume where the mailbox database is stored or only on the application volume where the queue and/or the location of the Exchange install?  I only have 30 GBs out of 330 GBs available on my mailbox drive (not the same as the c: drive) and outside emails are not processing.  Wouldn't back pressure make all emails not process?

Exchange 2010 back pressure

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.