Mail.que on exchange 2013 is growing to large size

Some time the file mail.que is growing to very large size, you can reduce this size by re-creating the Queue folder on :

C:\Program Files\Microsoft\Exchange Server\V15\TransportRoles\data\Queue

First check if you have some email on queue by executing on exchange powershell console:


Make sure that there is no e-mails on Queue ! Stop the “MSExchange Transport” service -> rename Queue Folder -> start “MSExchange Transport”,

this will re-create the Queue folder.


Good Luck

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