Exchange 2010 SP1
Recently, I found out that our multi-mailbox search only stays 0% forever when we copy results to a discovery mailbox but the estimate works. I did get-mailbox to check and found out that NumberMailboxesToSearch shows 0 no matter how many mailboxes to choose (1 or 2 or 3 etc) and I guess that is the cause that multi-mailbox does not work (0% 0Bytes). see the image below
I did get-mailboxsearch details on the estimate search and copy to discovery mailbox search
on estimate the search results and I got: NumberMailboxesToSearch:1
on copy the search results to the destination mailbox which has the exact search query as the estimate one and I got: NumberMailboxesToSearch: 0
Even I select one mailbox to search but the NumberMailboxesToSearch shows 0 in the above screen shot.
Can anyone from MS help?
Thank you for your sharing and support.