![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(217.60000000000002, 31%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAP%3C/text%3E%3C/svg%3E)
Exchange Online
A cloud-based service included in Microsoft 365, delivering scalable messaging and collaboration features with simplified management and automatic updates.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(105.60000000000001, 84%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHN%3C/text%3E%3C/svg%3E)
Before you proceed, please do not select “Use temporary mailbox / Connect to temporary mailbox”. Microsoft warns that this option can cause data loss.
If OWA access works correctly, here are recommends the following official solutions for this error message:
- Delete all existing Outlook profiles except your primary one.
- Create a new Outlook profile (you can see detailed steps to create a new profile here: Create an Outlook profile - Microsoft Support) and set it as the default, then remove the old profile
For more details, see Microsoft’s article: "Your mailbox has been temporarily moved on Microsoft Exchange server” message when an Office 365 u…
Registry fix
If the problem persists, you can attempt the registry solution:
- Press
Windows + R,typeregedit, and press Enter. - In the Registry Editor, paste this path into the address bar:
- Create a new DWORD (32-bit) value named
ExcludeExplicitO365Endpointand set the value to 1 then restart your computer for the changes to take effect.
- Create a new Outlook profile and add accounts to see if the problem persists.
Additionally, as a forum moderator, I can only share information and general guidance. How you choose to apply these steps is entirely up to you and please proceed carefully when making changes to the registry, incorrect modifications may affect how the system operates.
Once you’ve had a chance to review or try the steps, please let me know how it goes. I look forward to your reply.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.