Error "Something went wrong" - Status Code 500 when accessing [outlook/- e.g., OWA]

Question

Dear Support Team,

I am currently encountering an error when trying to access [State the service or application, e.g., Outlook Web Access (OWA)]. I receive a "Something went wrong" message, and I am unable to use the service.

Steps Taken:

1. Clicked "Refresh the application," but the error persists.

[Add any other steps you attempted, such as: Clearing browser cache, trying a different browser].

Technical Error Details (Crucial for Diagnosis):

Please review the "Fewer Details" shown in the attached image, which includes the following critical information:

UTC Date: 2025-12-09T06:31:02.986Z

Client ID: [ID from the image]

Session Id: [ID from the image]

Client Version: 20231128003.09

Error: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasDisabledMailboxClientAccessException

Error Code: 500

ecp: ServerError

estack: Error: 500

st (Call Stack Snippet): Object.V.as(createStatusErrorMessage) (https://res.public.onecdn.static.microsoft/owa/mail/hashed-v1/scripts/owa.mailindex.4b661d9f.js:2:9712) and at https://res.public.onecdn.static.microsoft/owa/mail/hashed-v1/scripts/owa.mailindex.4b661d9f.js:2:41504

X-OWA-Error: shib2: X-OWA-Error

evers: 15.20.9412.6

Attachment:

Error screenshot (image_b102b8.png)

Could you please investigate this issue and advise on a resolution as soon as possible?

Thank you for your assistance

Answer 1

The error message you are encountering, specifically Microsoft.Exchange.Clients.Owa2.Server.Core.OwaUserHasDisabledMailboxClientAccessException, indicates that the mailbox associated with the user has been disabled, which is preventing access to Outlook Web Access (OWA). This is typically a configuration issue that needs to be resolved by an administrator.

Here are some steps you can take to address this issue:

1. Check Mailbox Status: Ensure that the mailbox is enabled and not disabled. This can be done through the Exchange Admin Center or by using PowerShell commands to check the status of the mailbox.
2. Contact Administrator: If you do not have the necessary permissions to check or enable the mailbox, contact your IT administrator for assistance.
3. Review Logs: If you have access, review the Exchange logs for any additional error messages or information that may help diagnose the issue further.
4. Try Different Browsers: Although you mentioned refreshing the application, trying to access OWA from a different browser or clearing the browser cache may help in some cases.
5. Check for Service Outages: Sometimes, service outages can also lead to such errors, so checking the service health dashboard may provide insights.

If the issue persists after these steps, further investigation by your IT support team may be necessary to resolve any underlying issues with the mailbox or the Exchange server configuration.

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References:

• Error occurs in EMS, EAC, ECP, OWA, or Outlook on the web in Exchange Server 2013 or Exchange Server 2016
• Error in Outlook Web App after an upgrade to Exchange Server 2013 CU 11 or later: Your request cannot be completed right now
• Site mailbox retirement - April 2021
• Resolve free/busy errors
• Customize the Outlook on the web sign-in, language selection, and error pages in Exchange Server

Answer 2

Hi @عمر محمد شحات,

Welcome to Microsoft Q&A, and thank you very much for reaching out to us.

Your questions content was initially duplicated. We deleted the duplicated part to make this clearer.

Please note that Q&A is a Microsoft forum where moderators and users share their knowledge and experience related to Microsoft services, it is not Microsoft Support. Additionally, forum moderators do not have access to your configuration, so assistance is based solely on available documentation and resources. That said, I will do my best to assist you as much as possible.

Based on your description, may I know if you are an admin or a user?

From my research, as Q&A assist suggests, the error OwaUserHasDisabledMailboxClientAccessException can occur if Outlook on the Web is disabled for your account. If you are an user, I highly suggest you reach out to your admin to check whether Outlook Web Access is enabled on your account by navigating to Admin Center > Active Users > [Your account] > Mail > Manage Email Apps:

Additionally, Error 500 can also occur if your Exchange license has expired or unassigned from your mailbox. Kindly reach out to your admin to verify this as well.

To check if Exchange licenses is assigned to your account, your admin can go to Admin Center > Active Users > [Your account] > Licenses and apps.

For more details on assigning license, you can check on this Microsoft Article here.

To check the licenses status expiry date, you admin can go to Admin center > Billing > Your products.

I hope this helps.

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