I have 3 IMAP accounts and two POP accounts set up in Outlook 2013. Instant Search works perfectly on the POP accounts and Search works on all accounts but in the IMAP mailboxes when I type something in the Instant Search box the results pane goes blank except for "Searching ..."
If I change the dropdown on the right to "All Mailboxes" I get results from the IMAP folders. Of course I get results from all the other mailboxes too which makes the search results a bit crowded.
I have tried rebuilding the Windows index a number of time, it doesn't help.
Thanks in anticipation.