1. Outlook Email For Mac
  2. Rebuild Identity Outlook For Mac
Office 2016 for Mac no longer includes the ability to rebuild or repair profiles. It is recommended to create a new profile.


Step 1: Quit all applications

Outlook for Mac works with Microsoft Exchange, Microsoft 365, Outlook.com (including Hotmail and MSN), Gmail, Yahoo Mail, and iCloud Learn more about Microsoft 365 Microsoft 365 is a cloud-based subscription service that brings together premium versions of Word, Excel, PowerPoint, Outlook and OneDrive, with the best tools for the way people. Note: The ability to manually repair or rebuild a database is not available in Outlook 2016 for Mac.If a problem such as Outlook data corruption occurs, Office 2016 for Mac automatically repairs and rebuilds the Office database for you. For more information, see About the Office 2016 for Mac database. Till now, you have successfully created backup of your Outlook identity folders and its time for Outlook 2011 Mac Database Recovery. Go through following set of instructions to perform the same: Press Option key from your keyboard and click on desktop icon of Outlook 2011. This will open Database Utility Window in front you.

You must quit all applications before you continue with the following steps. To quit an application, click the <application name>menu on the toolbar (top), and then select Quit. If you cannot quit an application or do not know how, hold down the Command and Option keys, and then press Esc on your keyboard. Select the application in the Force Quit Application window, and then select Force Quit. Click Force Quit to quit the application.

Note You cannot quit Finder.

When you are finished, click the red close button in the upper-left corner to close the window.

Step 2: Determine the amount of space available on the hard disk

Before you perform any database maintenance, make sure that you have at least three times as much hard disk space available as the current size of your Outlook identity. For example, if the identity is 1 gigabyte (GB), there should be at least 3 GB of free space available on the hard disk (not including the space that is needed for virtual memory).

To determine the size of your identity, follow these steps:

  1. In the Finder, click Go, and then click Home. Open the Documents folder.
  2. Open the Microsoft User Data folder.
  3. Open the Office 2011 Identities folder.
  4. Click the Identity folder.
  5. On the File menu, click Get Info, and then click Get Information. Note the size of the database.

When you create an Outlook identity, hard disk space is allocated for the data that the identity receives as you work. When you add and delete messages, appointments, tasks, and notes, the database can develop wasted space.

Step 3: Discover and back up the current identity

To back up your identity, follow these steps:Form for mac.

  1. In the Finder, click Go, and then click Home. Open the Documents folder.
  2. Open the Microsoft User Data folder.
  3. Control-click or right-click the Office 2011 identities folder, and then select Duplicate. A copy of the folder is created.
  4. Quit all applications.

You have created a backup of your identity (or identities) and are ready to continue.

Note This backup can be used by third-party database recovery software, which generally work better on non-rebuilt identities.

Step 4: Rebuild the database

  1. Quit all applications.
  2. Hold down the Option key on the keyboard, and then start Outlook 2011.

Note You can also browse to the Database Utility by opening the Application folder and then opening the Microsoft Office 2011 folder. Open the Office folder, and then double-click Microsoft Database Utility.app.

Outlook Email For Mac

  1. In the Database Utility window, select the database that you want to maintain, and then click Rebuild.
  2. The Rebuilding Main Identify window will open and show the progress. When the operation is completed, you will receive the message 'Your database was rebuilt successfully.'
  3. Click Done.

Start Outlook and see whether the problem is resolved. If the problem is not resolved, contact IS&T Help Desk to assist you in creating a new identity in Outlook 2011.

Error – “This application failed to start because OLM.DLL not found. Re-installing the application may fix this problem”.

Outlook for mac 2011 identity location

If this error hits your system, means Outlook 2011 for Mac is inaccessible and the application needs to be re-installed, but the problem is if you try to re-install the application, you might end-up losing previous data. Secondly, Outlook for Mac doesn’t allow OLM file to open on other email clients or operating systems, apart from Mac, thus ruling out the option of backup on other systems. To avoid losing email data, opt to rebuild Outlook 2011 for Mac which will not only help in resolving the current error “application failed to start” but also help in retrieving valuable database.

Before acquainting with the methodology, let’s have a look at the probable symptoms when Outlook for Mac stops responding as per expectations:

  • Slow and unresponsive Mac
  • Applications freeze or crash repeatedly without intimation
  • “Access denied” message pops-up and emails are not accessible
  • File not found as users are unable to locate data file
  • Error messages on the screen with error description and probable resolution
  • Mac system terminates after a time-period

What factors trigger the above-mentioned error symptoms? The common reasons which may result in corruption of Outlook 2011 Data file are:

  • Sudden Network failure or unexpected server problem
  • Malware attack on network
  • Exchange server crash
  • Mac Outlook is not installed properly or there is interruption in installation
  • Corruption in storage media where Outlook application is installed
  • Outlook for Mac crashes due to unexpected problem
  • Corruption during Outlook for Mac update process

There might be more reasons which result in Outlook for Mac data corruption. Whatever be the cause of the error, it is mandatory to repair and rebuild Outlook for Mac for efficient data recovery:

Steps to rebuild your Identity Database

Step 1: Switching off all the applications

  1. Click on application name menu from the toolbar available on top and select the Quit – option. Long press the Command and Option keys and press on Escape button from the keyboard.
  2. Select the application you need to quit from the Force Quit application window and click on Force Quit button. You can’t quit the Finder window. Close the windows with the red circular icon available on the top left corner of the screen.

Step 2: Identify the amount of space available on Hard disk

Maintenance process always needs double space and in this case of database maintenance, you need to have three times as much space as the current Outlook size is. If your Outlook database is 1 GB, you need to have 3GB space for efficiency.

Step 3: Get the backup of current identity

As the name suggests, backup is essential to avoid the risk of losing data

  1. In the Finder option, click on Go>>Home. Open folder “Documents”
  2. Open the Microsoft User data folder
  3. Right click on the Office 2011 identities folder and select duplicate to create a new folder.
  4. Quit application

Rebuild Identity Outlook For Mac

By this method, You have created backup of your current identity

Step 4: Rebuild Database using Inbuilt Utility

  1. Quit all applications
  2. Hold to long press the Option key and start Outlook 2011 application or open the Application Folder after that click on Microsoft Office 2011 Folder then Double click on Microsoft Database Utility app.
  3. Select the Database and click on Rebuild

4. Rebuilding Main Identify window will open and show the progress. When the operation is completed, you will receive the message “Your database was rebuilt successfully.”

Start Outlook 2011 application and verify if the problem is resolved. 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.

This step is applicable when you have created two different identities on the same system. Here Outlook may be configured to have more than one identity with each identity-constituting a separate set of e-mail, address books, tasks, calendars, account settings, and more. Multiple identities may face corruption due to a single file-damage. Create a new identity to resolve the error.

Step 5: Create new identity in Outlook 2011

  1. Quit applications. Long press Option key and click on Outlook to open Microsoft database utility.
  2. Click on (+) sign to add a new identity and type the name of new identity.
  3. Set the New identity you created to mark it as default.
  4. Now that a new identity is created, quit and restart Check if the problem is resolved.

Chances are that the database is still in the corrupt state even after the rebuilding database identity. Now that you have tried to rebuild database and the problem is not resolved, choose the most performing OLM repair software. One such tool is Stellar Repair for OLM software which not only repairs corrupt database but also retrieves the archived and deleted data, if required. You can choose a single folder from the database or select the complete database, this is solely at your discretion.

To summarize

Outlook 2011 for Mac is an important application from the user perspective. In case the database gets corrupt, Mac efficiency is diminished to nil. Using Stellar Repair for OLM software helps you to resolve the error in no time. With unmatched Graphical User Interface and widespread compatibility, this tool enables even the non-technicians to execute their task with utmost perfection.

What are you waiting for? Download the demo now.

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