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Mailbox offline

Anonymous
2024-10-21T11:49:23+00:00

Hi,

my O365/Enterprise mailbox is offline and when trying to access in browser I get the following error details:

Client Id: ***************************

Session Id:***************************

Client Version: 20241011003.11

BootResult: fail

UTC Date: 2024-10-21T11:37:09.530Z

Back Filled Errors: Unhandled Rejection: SyntaxError: The string did not match the expected pattern.:undefined|Unhandled Rejection: SyntaxError: The string did not match the expected pattern.:undefined|Unhandled Rejection: Error: 500:undefined|undefined:undefined|undefined:undefined|undefined:undefined

err: Microsoft.Exchange.Data.Storage.MailboxOfflineException

esrc: StartupData

et: ServerError

estack: Microsoft.Mapi.MapiExceptionMdbOffline

st: 500

ehk: X-OWA-Error

efe: FR4P281CA0223, FR4P281CA0223, FR4P281CA0223, BE1P281CA0392

ebe: FR6P281MB3611

emsg: ErrorMailboxUnavailable

So any tips what to do now?

The error occures on mobile, desktop and web. Other mailboxes i have access to work without any issues.

Outlook | Web | Outlook on the web for business | Email

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  1. Anonymous
    2024-10-21T13:15:07+00:00

    Dear Alexander Witkowski,

    Good day!

    Thank you for posting to the Microsoft Community. We are glad to assist.

    Based on your post regarding "my O365/Enterprise mailbox is offline and when trying to access in browser I get the following error details: Client Id: C7787ABB3BC54C85B4B2C4634507CB50". Microsoft has already published a corresponding status report in the admin area.

    Some users may be unable to access their Exchange Online mailbox on multiple connection methods
    Issue ID: EX914857Affected services: Exchange OnlineStatus: Service degradationIssue type: IncidentStart time: Oct 21, 2024, 9:33 AM GMT+2User ImpactUsers may be unable to access their Exchange Online mailbox via multiple connection methods.More infoImpacted connection methods include, but aren't limited to:– Outlook on the web– Representational State Transfer (REST)​​– Exchange ActiveSync (EAS)– Messaging API (MAPI)Scope of impactImpact is specific to some users who are served through the affected infrastructure

    Note: we will update you when issue solved.

    We sincerely appreciate your patience and cooperation. Thanks for your precious time!

    2 people found this answer helpful.
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  2. Anonymous
    2024-10-25T11:28:07+00:00

    Dear Alexander Witkowski,

    Good day to you and I hope you are doing well.

    We want to check with you if you still facing any issues with Outlook, AS Microsoft confirmed that the issue is solved.

    We sincerely appreciate your patience and cooperation. Thanks for your precious time!

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  3. Anonymous
    2024-10-21T11:54:11+00:00

    Okay might be related to an issue that shows up in Microsoft 365 admin center - EX914857

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