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Exchange 2010 Mail Queue Growing out of control.

michael334 asked
1 Endorsement
Last Modified: 2018-05-22
Have an issue with an Exchange 2010 Mail.Que file growing in in size to approx 8Gb until the transport service crashes and it creates a queue.old folder.
Configuration is DAG with two DB Servers and a Single CAS / Transport server that also DB role installed.
After purging the Queue folder the mail.que file does not change for about 15 minutes then starts to grow very quickly, generates a heap of TRN files up to the point where it crashes.

Does not impact service, queues still processing mail up until the crash, server creates a new mail.que file and takes off again.

Cannot see why it is doing this, all 3 servers Enterprise License - Version: 14.03.0339.000.

Any guidance would be greatly appreciated.
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