I cannot access my email on web mail or outlook app

Question

I cannot access my email on web mail or outlook app

Lisa Garcia 0

tried incognito browser and still cant connect

UTC Date: 2026-09-11T22:43:33.258Z

Client Id: [Moderator note: Personally Identifiable Information removed]

Session Id: [Moderator note: Personally Identifiable Information removed]

Client Version: 20260904006.07

BootResult: transient

Back Filled Errors: None

err: Microsoft.Exchange.Data.Storage.MailboxInTransitException

esrc: StartupData

et: ServerError

estack: Error: 500

at Object.w [as createStatusErrorMessage] [Moderator note: Personally Identifiable Information removed]

at [Moderator note: Personally Identifiable Information removed]

st: 500

ehk: X-OWA-Error

efe: BN0PR02CA0048

ewsver: 15.21.406.8

reqid: [Moderator note: Personally Identifiable Information removed]

cv: RHuSb5j20qUg6SZeOsitM0.3.1.1

0 comments

1 answer

Your answer

Answer 1

Hi @Lisa Garcia

Since you cannot access the mailbox through either Outlook on the web or the Outlook app, this suggests the issue is not related to your browser, device, or Outlook client. The Microsoft.Exchange.Data.Storage.MailboxInTransitException with Server Error 500 suggests that there may be an issue with the mailbox or its connection to Exchange Online. This appears to be a server-side condition and may be temporary while Exchange completes the underlying backend operation.

To narrow this down, could you please confirm:

Is this affecting only your mailbox, or are other users in your organization also unable to access their email?
Was your mailbox recently created, migrated, restored, or changed in any way?
Can you sign in to Office.com or OneDrive with the same account?

If other Microsoft 365 services work but email does not, I recommend asking your Microsoft 365 administrator to check the mailbox and Exchange Online provisioning/status.

If you’re unsure who your IT administrator is, see How do I find my Microsoft 365 admin? - Microsoft Support