A Mailbox Couldn’t Be Found for Office 365

A Mailbox Couldn’t Be Found for Office 365

Here we can see, “A Mailbox Couldn’t Be Found for Office 365”

You can run into a few typical and transitory issues if you’ve received a new email address from your institution or workplace and are trying to set it up with your Office 365 account.

Something that went wrong is one such blunder. Office 365 error: A mailbox could not be identified for email address>. This problem commonly happens when using the Office 365 Suite to access a new Outlook account.

This mistake could be caused by a lack of access to the license or a one-time problem that will go away on its own. This article will look at the best ways to repair this problem permanently.

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How can I fix we couldn’t find your Office 365 mailbox error?

1. Restart your PC

If you recently installed Microsoft Office and did not restart your PC after that, you should do so as soon as possible, regardless of whether the software prompts you to do so.

Restarting your computer normally applies any outstanding modifications and can occasionally fix problems. Something went horribly wrong. Office 365 error: A mailbox could not be identified for email address>.

2. Wait for 48 hours

Due to network or licensing constraints, the new email address may take some time to perform properly.

You can wait 48 hours to see if the error goes away on its own. If not, contact your university’s administration and inform them of the problem.

3. Check for Online Exchange License

If you have a new Office 365 account with an Office license, it’s crucial to know if the Exchange Online License has been issued to your account by the admin.

You may have problems if the user has not been assigned the required license. Something went horribly wrong. Office 365 error: A mailbox could not be identified for email address>. Check with the administrator or someone in authority to see if the necessary license has been assigned to your account.

4. Add an Alias

This is a Microsoft-approved solution for resolving the problem. The user must create an alias for their Microsoft account and log in to Microsoft services using it.

You can use an Alias if you already have one. If you don’t have an Alias, establish one and link it to your email address to access your Outlook account. Here’s how to go about it.

    1. To begin, go to Alias and Add an Alias. If prompted, sign in to your Microsoft account.
    2. Select one of the two options under Add an Alias.
    3. Enter your new email address and click Add alias to establish a new email address and add it as an alias.
    4. Click Add a current address as a Microsoft account alias, enter any of the existing aliases, and then click Add alias.
    5. The newly established Alias can be seen on the next screen. To make it the primary, click the Make primary option.
    6. To save the changes, click OK.

Now check in to your Office 365 account using your new alias to see if the error has been resolved.

Something went horribly wrong. The Office 365 error could result from a brief Microsoft bug or an issue with the Online Exchange license assignment. For e-mail address>, a mailbox could not be identified.


I hope you found this guide useful. If you’ve got any questions or comments, don’t hesitate to use the shape below.

User Questions

1. Is it possible to purchase Microsoft 365 from a different country?

You can’t buy a Microsoft 365 package in one region and use it to top up another region’s account. Because of the exchange rate and pricing discrepancies, this may be enticing, but Microsoft will not allow you to do so.

2. What is a Microsoft 365 mailbox, and how does it work?

Mailboxes. Each person in your organization who requires an email account will be assigned an Office 365 mailbox, which will be hosted on either the Outlook desktop application or the Outlook Web Application. Licensed mailboxes, which require a login, were created for personal mail, devices, and programs.

3. What is the name of the 365 email service?

Microsoft Outlook is a personal information manager software system that is included in the Microsoft Office suite. Outlook is essentially an email client, but it also has calendaring, task management, contact management, note-taking, journal keeping, and web browsing capabilities.

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4. Help: what to do if receive ‘A mailbox couldn’t be found’ – Reddit

Help: what to do if receive ‘A mailbox couldn’t be found’ from Office365

5. email address couldn’t be found error (outlook) – Reddit

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