If you encounter problems with an offline Outlook Data File (.ost), the file can be re-created by downloading a copy of your items again. The ability to work offline is useful in environments with limited or unreliable connectivity. Offline folders make it possible for the user to work offline and then to synchronize changes with the Exchange server the next time they connect. You can try uninstalling and reinstalling Office for Mac.Īn OST file (.ost) is an offline folder file in Microsoft Outlook.

There is not repair tool for MacOS clients at this time. If any errors are found, you will be given the option to repair the file.Click the 'Start' button and wait for the scan to finish.You can click 'Browse' and navigate to C: > Users > your account > AppData > local > Microsoft > Outlook to search for the file you would like to repair. In the search field, type 'scanpst.exe.' If you were unable to find the file, go back and click the folder labeled 'Program Files (x86)'' and try the search there.Double click the folder labeled 'Program Files.'.Open your local disk drive (C:) by double-clicking it.Make sure your Outlook client is closed.This often helps clear up problems users may experience when working with email in an Outlook desktop client. This process will describe the process to repair your Offline Storage Table (OST) or Personal Storage Table (PST) file.

When hovered over, it will read 'Save as HTML.' It would be useful to save this, incase you need to open a case in which you would then be able to provide us with this information.

From the tests results, there will be an icon located in the top right.

Click the button 'Perform Test' located at the bottom of the page.

Enter the verification code and click 'Verify.'.

I also acknowledge that I am responsible for the management and security of this account.'

Click the box next to 'I understand that I must use the credentials of a working account from my Exchange domain to be able to test connectivity to it remotely.

Make sure 'Use Autodiscover to detect server settings' is clicked.

Email address: Microsoft Account: Password/Confirm Password: Your NetID password.

Click the bubble next to 'Outlook Connectivity' or 'Outlook Autodiscover' depending on which test you would like to perform.

This often includes your client disconnecting after a period of time or not connecting at all. The Remote Connectivity Analyzer tool provided by Microsoft will provide a diagnosis and hopefully help pinpoint the cause of any errors you may experience when using an Outlook client.

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