Tenant Access Blocked Error,Error 500

Question

UTC Date: 2025-10-11T06:37:12.916Z
Client Id: <PII-removed>
Session Id: <PII-removed>
Client Version: <PII-removed>
BootResult: configuration
Back Filled Errors: Unhandled Rejection: Error: 500:undefined|undefined:undefined
err: Microsoft.Exchange.Data.Storage.TenantAccessBlockedException
esrc: StartupData
et: ServerError
estack: Error: 500
    at Object.w [as createStatusErrorMessage] (https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.fa96f6eb.js:1:1040)
    at https://res.public.onecdn.static.microsoft/owamail/hashed-v1/scripts/owa.mailindex.fa96f6eb.js:1:179082
st: 500
ehk: X-OWA-Error
efe: DX1P273CA0006
ewsver: 15.20.9203.10
emsg: TenantAccessBlockedError

Answer 1

Hello M Yousaf Khan,

Please understand that our forum is a public platform, and we will modify your question to cover your organization domain name in the description. Please notice to hide these personal or organization information next time you post error or some information to protect personal data. 

Thank you for reaching out to Microsoft Q&A forum regarding the error you're encountering when accessing your email with Outlook. The "TooManyObjectsOpenedException" typically indicates a limit on open sessions or objects in your account. I've put together a quick, step-by-step guide to help fix it. Give these a try one by one, and check if you can get back in after each step.

1. Sign out of all sessions: Visit https://mysignins.microsoft.com/security-info, sign in, and select "Sign out everywhere." Wait a few minutes before retrying.
2. Clear browser cache: In your browser settings, clear cookies and cache for all time. Try accessing OWA in incognito mode.
3. Safe Mode for Outlook app: Run Outlook with outlook /safe via Windows Run (Win + R). Disable add-ins if it works.
4. Repair profile: In Outlook > File > Account Settings > Manage Profiles, repair or create a new profile.
5. Quick checks: Wait 1-2 hours for server throttling; check service status at https://portal.office.com/servicestatus; update Outlook; try another device/network.

If none of these steps work, I suggest contacting Microsoft support:

• For personal accounts (Hotmail/Outlook.com/Live): Go to support.microsoft.com > Outlook > Sign in and describe the error (include the full Error).
• For work accounts (Office 365): Contact your IT admin or open a ticket at admin.microsoft.com

Please understand that our initial response may not always resolve the issue immediately. However, if you update more detailed information, we can work together to find a resolution. 

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