(%5%6(%7) Proc %8) (MTA %2(%3) Proc %4) %1 Management command refused because of disk shortage (14)

Details
Product: Exchange
Event ID: 519
Source: MSExchangeMTA
Version: 6.5.0000.0
Message: (%5%6(%7) Proc %8) (MTA %2(%3) Proc %4) %1 Management command refused because of disk shortage (14)
   
Explanation
The disk drive that the MTA is using is running low.
   
User Action
Free up space on the MTADATA working directory drive. If this is not possible, consider moving the MTADATA working directory to a different volume.

For additional information see:

259896 XCON: How to Change the Location of the MTA Database and Run Directory

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