Unable to login to Outlook emails

PAH 0 Reputation points
2026-09-04T07:59:00.25+00:00

My Hotmail mailbox will not load. I can sign into my Microsoft account successfully, but Outlook gets stuck loading and then shows error 500:

Microsoft.Exchange.Data.Storage.MailboxIn-TransitException (please see attached screenshot). I have tried Outlook.com on my phone as well as the downloaded app on my phone and outlook.com on my laptop. It has been happening for a couple of days. Please check my mailbox on the Exchange back end. Screenshot 2026-09-04 084049.png

Outlook | Web | Outlook.com | Email
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  1. Alvise Cervellati 6,455 Reputation points Independent Advisor
    2026-09-04T08:49:48.92+00:00

    Hi @PAH , Welcome in Community

    Do you have a consumer or business account? There's been a recent issue with business accounts that prevented access

    The Microsoft.Exchange.Data.Storage.Mailbox Transit Exception message accompanied by status code 500 indicates an operation in progress directly on Microsoft servers

    Have you tried logging in on multiple computers? Have you also tried using multiple network connections, such as your phone's hotspot?

    Usually there's no technical intervention you can perform locally on your browser or computer. The migration process usually completes automatically; simply reload the Outlook web page after a few hours to check if the migration is complete.

    Let me know

    Elvis

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