How to Fix Outlook Error 500

If you’re getting How to Fix Outlook Error 500, Something went wrong, Mailbox not found, Protocol disabled, or Repeating redirects detected errors, here’s how to bypass that error message. In most cases, the solutions are the same to fix almost all the errors related to Error 500. However, we have listed some specific and working solutions for some of the aforementioned error messages so that you can get rid of them within moments.

How to Fix Outlook Error 500

To fix Outlook error 500, follow these steps:

  • Check service health
  • Manage roles of users
  • Enable Outlook on the web
  • Check your subscription
  • User removed
  • Scan for adware
  • Disable extensions
  • Clear cookies and cache

To learn more about these steps, continue reading.

1] Check service health

If you’re getting Outlook error 500, you should check the service health first. If the service is down at Microsoft’s end, you won’t be able to fix the issue from your side. Checking the service health will tell you whether you need to follow other solutions. To do that, follow these steps:

  • Visit the Microsoft administration website at
  • Click on the Health option and choose the Service health option.
  • Choose the All services option.
  • To find the Microsoft 365 Suite’s health, you can go to the Microsoft 365 admin center and view the health reports.

If an error displays, you need to wait until it gets fixed.

Related post: How to create and set up an email account

2] Manage roles of users

When you add multiple Global Administrator accounts, a chance of getting Outlook error 500: Protocol disabled error on your computer arises. Therefore, you need to remove all the other permissions from all the accounts excel for Global Administrator. For that, do the following: Remove all the other permissions from all the accounts except for Global Administrator.

  • Log into your Office account.
  • Click on the Users tab on the left side.
  • Click on the “Manage roles” option to proceed.
  • Select the user who is getting the error.
  • Choose the Admin center access menu.
  • Select the Global Administrator option.
  • Click the Save button.

After that, you will no longer get the aforementioned error.

3] Enable Outlook on the web

When you are getting the “Protocol disabled” message while accessing the Web version of Outlook, it means that the administrator has removed the permission to access Outlook email via the Outlook Web version. To enable the Outlook Web version, follow these steps:

  • Login to your Office 365 account.
  • Click on the user you want to email, then click the Mail option.
  • You can manage your email apps by clicking on the “Manage email apps” option.
  • Select Outlook on the web.

4] Check your subscription

You must have a subscription to use Outlook. If there are some issues with the subscription, you may get the “Mail not found” error. After a specific time period, the mailbox may be removed due to inactive subscription status.

5] User removed

Your organization may have removed your user account so that they can manage the current people fluently. If this is the case, you will find the Mailbox not found error. In that case, you need to contact your organization for further information.

6] Scan for adware

If you are getting the Repeating redirects detected error while accessing Outlook, you need to scan your computer for adware. Adware can create countless redirects and block you from accessing various websites. If you think you might have adware on your computer, we recommend you use an adware removal tool. Some good options are AdwCleaner, Ultra Adware Killer, and Malwarebytes Anti-Malware.

7] Disable extensions

If you’ve installed a VPN, proxy, or adblocker extension in your browser, it’s suggested you uninstall them. Even if you don’t want to uninstall them, you can try disabling them temporarily. Those extensions can cause the issue mentioned above on your PC. So, turn off all extensions in your browser and see if that resolves the issue. If it does, enable one extension at a time to find the culprit.

8] Clear cookies and cache

If this particular website’s cookies and cache are causing issues, you can try removing them. Deleting cookies and cache for just this website may fix the problem.

What is 500 Something went wrong?

The Error 500 “Some went wrong” usually occurs when there are old cache and cookies stored in your browser. You can fix this issue by deleting the cookies and cache for Whether you use Google Chrome, Edge, Firefox, or anything else, you can remove cache and cookies for any specific site.

How do I enable protocol in Outlook?

To enable or disable a protocol in Outlook, you need to follow the third solution mentioned in this article. As an administrator or with admin access, you can enable or disable Outlook on the web, Outlook desktop, IMAP, POP, Mobile, etc.

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