Fixed – ‘Your mailbox has been temporarily moved to Microsoft Exchange Server’

Aftab Alam | Updated On - June 05, 2023 |

Read time 7 minutes

Microsoft Outlook is popular with enterpries as it offers Exchange connectivity, which is crucial for enerprise-level email communication. So it is an integral part of modern working environments. Also, it supports Microsoft’s own cloud platform (Office 365) for emailing.

Like Exchange accounts, Office 365 accounts also can be configured in Outlook. It helps Office 365 users to manage emails and other mailbox data more efficiently. Though convenient, it can create issues too. For example, when configured with Office 365 account, sometimes you may face the following message while opening Outlook:

Though the error message gives an option, we advise you NOT to connect to the temporary mailbox as it may cause data loss.
A common reason behind the error is that your Outlook profile is corrupt, and Outlook has automatically connected with Microsoft Exchange Server. Now, you need to run some troubleshooting and check whether the Profile gets opened or not.

Method – 1. Enable the Cached Exchange Mode

1. Exit Outlook and open Control Panel; click the Mail option.
   
2. Click the E-mail Accounts button.
   
3. Select the account and double-click It.
   
4. Check the option Use Cached Exchange Mode.
   
   Note: If it’s already enabled, you can disable it and enable it again after restarting Outlook.
5. Restart the Outlook and see if the profile gets opened.

1. Exit Outlook and start Control Panel. Click the Mail option.
2. Click the Show Profiles button.
   
3. Select the account which is facing the problem and click the Remove button.
   
4. There will be a caution message:
   ‘Careful, if you remove this profile, offline cached contents for its accounts will be deleted.’
   Click the Yes button.
   
5. Follow the same procedure for each account, leaving the primary profile.
6. Start the Outlook and see if it works.

1. Exit Outlook and start the Control Panel. Here, click the Mail option.
2. Click E-mail Accounts.
   
3. Click the New icon.
   
4. Input the details for the new account and click Next.
   
5. After creating the account, you can delete the previous account and use the current account as the default. Furthermore, you can go to the Mail option and choose the option to ‘Always use this profile.’ Select the account you have created. Click OK.
   

ScanPST is an inbuilt repair tool which scans the PST file and repairs it for minor errors. You can run the ScanPST application from its location and scan quickly. But it is essential to take a backup of the PST file before using the ScanPST because the tool can delete some data from the mailbox and restore the remaining data. It will allow you to use the account, but the deleted data will not come back.

There may be some unnecessary add-ons which may be stopping the opening of Outlook. The user should disable these add-ons one by one and check if the account gets opened.

There are some anti-malware software(s) which checks the incoming messages to your account and stops them if they are fishy. It also checks the mailbox content and deletes the harmful messages. You can disable this anti-malware software or prevent them from blocking the messages.
After using these troubleshooting methods, you will be able to operate Outlook again. But there are many chances that you have to either lose the mailbox data or delete the account. To save the OST file data, use OST to PST conversion methods, such as, Kernel for OST to PST, which converts OST files to the PST and recovers the data. It is the best method to recover an OST file to PST format and get the entire data in full health. Another advantage of this tool is that you can save OST data directly to Office 365, Exchange Server, Gmail, or other popular destinations. So, this is the best tool for OST to PST conversion.

In the event that you are encountering the ‘the mailbox has been temporarily moved to the Microsoft Exchange server‘ error in Outlook 2013, it is possible that you can resolve the issue by making a few registry tweaks so that modAuth is supported.

To resolve this issue, follow these steps to modify the EnableADAL & Version values in Outlook 2013:

1. Open the Run window by pressing Windows key + R. Then, type “regedit” into the text box and hit Enter.
2. You will be prompted to grant admin access by the UAC (User Account Control). Tap on Yes.
3. You can navigate to the following location once you’re inside the Registry Editor: HKCU\SOFTWARE\Microsoft\Office\15.0\Common\Identity\. If you paste the address directly into the navigation bar and press Enter, you can also get to that location instantly.
4. Inside the Identity key, click the EnableADAL button, set the value to 1 and the Base to hexadecimal. In case the value REG_DWORD is not created, create yourself by right-clicking on an empty space > New > Dword (32-bit) value.
5. After that, double mouse click on the Version value & put the Base to Hexadecimal along with the Value data to 1.
6. The changes will take effect once you restart your computer. Quit the Registry Editor and then restart your PC.

Besides corrupted data stored in the main AppData folder of Outlook, the ‘Your mailbox has been temporarily moved on a Microsoft Exchange server‘ error can also be related to problems with the Windows Registry.

Many users have had success renaming the existing Outlook folder in the AppData folder to force the application to create fresh folders when they encounter the same issue. Furthermore, if the operation does not succeed you will not have to worry about losing data.

To rename an existing Outlook folder, follow the steps below.:

1. To open the Run dialog box, hold down Windows key + R. Now type up %appdata% in the box.
2. Click OK to access the AppData folder. Please note that this folder by default is hidden.
3. Within the AppData folder, you will find the Outlook entry. Select it and rename it.
4. The next step is to rename the existing Outlook file with a ‘.old‘ extension so that the application will create a new folder.
5. Start Outlook again at the next restart to see if the problem has been resolved or not.

Final Words

With an Office 365 account configured in Outlook, users may sometimes get an error:– ‘Your mailbox has been temporarily moved to Microsoft Exchange Server.’ It is a simple error that can be fixed by changing the Outlook profile or recreating it. But if Outlook users face an issue due to OST file inaccessibility, they can convert the OST file to PST.

Kernel for OST to PST converter tool needs only a minimum number of steps to convert the OST file, and it retains the whole data in the file without damage. The time of the conversion depends on the size of the OST file, and there is no limitation in recovering the file items. After retrieving the items, you can save them in a new PST file. This PST file can be imported to any new Outlook profile.