However, there are certain scenarios where Outlook fails to load and can often lead to corrupt or damaged database. These identities contain user mail data including messages, contacts, tasks, calendars, and more. A Mac system with MS Outlook uses the Microsoft User Data folder to store the database file with each identity in its own folder. Microsoft Outlook for Mac is a widely accepted email client for accessing and managing mails. Outlook for Mac stores user OLM file format to store data whereas Outlook for Windows uses PST (.pst) file. Mac and Windows both use Outlook and store user’s data locally. Click the identity of the database you want to rebuild, and then click Rebuild. If Office detects a problem with the database, it automatically runs the Database Utility. You can rebuild the Office database by using the Microsoft Database Utility.
Outlook 2016 for Mac Outlook for Mac 2011 Database Utility for Mac 2011 More. This step is applicable when you have created two different identities on the same system. If the problem is resolved, proceed to access Outlook 2011 for Mac but if the problem still persists, proceed to create a new Identity to further resolve the issue.