How to Rebuild Database in Outlook 2016,2011 for Mac?
MS Outlook is the most favored email client by several users that manages contacts,notes,emails,calendars,events etc. It also acts as a personal information manager. Outlook is available both for Mac and Windows. But sometimes,Outlook application can’t start when OLM.DLL not found. To resolve this error,users need to re-install the application. Hence,in this article,we will discuss the ways how to rebuild Mac Outlook database in 2011 and 2016 versions.
Symptoms when Outlook for Mac Stops Responding
- Slow and unresponsive Mac
- Mac Outlook freezes or crashes suddenly without any warning
- Users are unable to locate and find OLM data file
- Mac system terminates after a time period
- Error messages on screen with error description and probable resolution

Tips to Rebuild Mac Outlook Database 2016
To rebuild Outlook database Mac 2016,follow the below-mentioned steps via Outlook profile manager.
Step 1. Access Outlook Profile Manager
- Open Finder menu and go to the Applications option.
- Click on the Control in Applications window.
- Now,click on Microsoft Outlook and choose Show Package Contents.
- After this,go to Contents and then select Shared Support.
- Now,open Outlook Profile Manager and access it.
Step 2. Create a New Profile for Mac Outlook 2016
- Once Outlook Profile Manager is opened,click on (+) plus icon.
- Go to the text box and type a name for the new profile.
- Click on the Return button to create a new profile.
Step 3. Delete a Profile that Exists in Outlook
- Now,you need to delete a profile in Outlook Profile Manager and click on Profile.
- After that,click on (–) minus button.
- Click on Delete button in the confirmation dialogue box.
Step 4. Set a Default Profile
Finally,to set a default profile,to rebuild Outlook database Mac 2016 –
- Go to Outlook profile Manager and set a default profile by clicking on profile and set it as default profile.
- Click on the gear button and choose Set as default option.
Reasons to Rebuild Mac Outlook 2011 Database
There are many causes that lead Mac Outlook application inaccessible and require rebuild Mac Outlook database in Outlook 2011 or 2016.
- Malware attack on the network
- Exchange Server crash
- Mac Outlook not installed properly
- Mac Outlook crashes due to an unexpected problem
- Network failure and unexpected server issue
- Corruption is found in storage device where Outlook is installed
Tricks to Rebuild Database in Mac Outlook 2011
Follow the below mentioned steps to rebuild Outlook for Mac 2011 database –
Step 1. Switching Off all Applications
- Click on application menu from the toolbar available on top and select Quit option.
- Long press the Command and Option keys. After that,press on the Escape button from the keyboard.
- Select the application you need to quit from the Force Quit application window.
- After that,click on the Force Quit button. You can’t quit the Finder window. Close the Windows with red circular icon on the top left corner of the screen.

Step 2. Identify the Amount of Space Available on the Hard Disk
Maintenance process needs double space and in case of database maintenance,you need to have three times as much space as current Outlook size is. For example,if your Outlook database is 1 GB,you need to have 3 GB space for efficiency.
Step 3. Create a Backup of Current Profile
Backup is important to avoid the risk of data loss. Therefore,you need to create a backup of your current database of Mac Outlook 2011 by the following these steps –
- Go to the Finder option and click on Go option and then Home.
- Open the Documents folder and choose Microsoft user data folder.
- Right-click on Office 2011 identities folder and select Duplicate option to build a new folder,Exit Mac Outlook application.
- Now,create a backup of your current Outlook account database.
Step 4. Rebuild Mac Outlook 2011 Database
- Quit all applications.
- Long press the Option key and start Outlook 2011 or open the Application Folder after that click on Microsoft Office 2011 folder then double click on Microsoft Database Utility app.
- Select the database and click on Rebuild.
- Now,a window will open shows the recreating database progress. You will receive a message “Your database was rebuilt successfully.”
- Start Outlook 2011 and verify if the problem is resolved. If the problem is resolved,you can access Outlook application but if the problem still exists,then you need to create a new profile to resolve the issue.
Step 5. Create a New Profile in Outlook 2011
- Exit all applications. Then long press Option key and click on Outlook to open Microsoft database utility.
- Click on (+) plus icon to add a new identity and enter the name of a new identity.
- Set the newly created Outlook profile as default.
- Finally,you will recreate the new Outlook profile.
Let us Sum Up
Mac Outlook is an important client for users. In case,the database gets corrupted,Mac Outlook is unable to access then users need to rebuild Mac Outlook database. Using the above-discussed methods,the user can recreate a new profile in Mac Outlook.