Hi @Ben Moseley,
Thank you for posting your question in the Microsoft Q&A forum, and I’m sorry to hear you're having trouble accessing your work account.
To better assist you, could you please clarify the following:
- Have you tried searching for the email across all folders in your mailbox?
- Could you double check if you have added your work account to the authenticator app?
- If yes, are you currently using the same device where you originally registered the Authenticator app? Have you recently switched to a new device?
- Is the account you used to sign into Outlook the same one you’re verifying in Authenticator?
While we wait for your answers, here are some steps you can try:
Please note: these instructions are intended for end-users. If you’re an IT administrator dealing with an authenticator issue, let me know so I can provide guidance specifically for your role.
1/ You can follow this official guide to get started: How to add your accounts to Microsoft Authenticator - Microsoft Support

2/ You can also refer to this article for instructions on signing in with your work account using the app: Sign in using Microsoft Authenticator - Microsoft Support
3/ If you need further assistance, you can reach out to your IT administrator and share with them the steps outlined in the article Manage user authentication methods for Microsoft Entra multifactor authentication. This will help them assist you in resetting your MFA settings and restoring access to your account. Once this is done, you’ll be prompted to set up MFA again on your new device during your next sign-in.
Please note that forum moderators do not have access to user account settings and cannot assist with logging in, resetting passwords, or changing access rights.* While we do not have access to internal systems or administrative tools required to resolve account-specific or backend-related issues, we’ll continue doing our best to support you within the scope of our responsibilities.*
If you have any updates, feel free to leave a comment under this post. I’ll be happy to assist further.
Thank you for your cooperation and understanding in resolving this matter.
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