I have tried using Message Store Manager on large Unity deployments and had some issues. I am posting this hoping for some feedback and insight.
On these deployments I wanted to move read items to the deleted items folder after a designated number of days, and purge deleted items after a designated number of days.
The agents functioned successfully but I found that the service was running constantly. The log showed tons of activity and failed and successfully logins and the service never seemed to stop running.
I know that this tool should be used during off peak hours but that didn't seem to be possible when there were a lot of boxes MSM had to manage.
Is this typical? Am I doing something wrong? Is Microsoft's Mailbox Manager more efficient? I see the same caveat to run Mailbox Manager during off peak hours as well.
Any feedback would be appreciated.