44 votesAnonymous commented
Outlook all mailbox search is extremely slow and outlook goes to not responding for more than 10 seconds and once loaded it still is slow and keeps lagging.
This is only when all mailbox search is done in online mode maybe as it tries to sync all 5 mailboxes from server which cause the app to lag.
When all mailbox search is done in offline mode irrespective of OST file size being as large as 30gb(collectively of 5 mailboxes) the same happen in a second and search result is displayed. If outlook cannot handle all mailbox searches of large file and multiple mailboxes in online mode then there should be a option to do all mailbox searched in offline mode. Right now have to put outlook every time on offline mode before search and put online again after search.Anonymous supported this idea ·