User is authenticated but not connected

Andrii Maslov 31 Reputation points
2021-02-19T09:25:15.717+00:00

Greetings!

I have a web app that uses oauth authentication with IMAP/SMTP protocols to access emails in office365/outlook mailboxes. But a few customers had a problem connecting through those protocols Server returns A0003 BAD User is authenticated but not connected after selecting mailbox. I've tested oauth flow with my personal outlook and office365 accounts - and I haven't experienced such error.

Customers that have this problem has a normal mailbox, not shared one. Also SMPT/IMAP options are turned on. The problem began a couple days ago, no changes in oauth flow in my web application were done.

I've did some research on my own but didn't find much. So my questions are :

  • what could cause this error and what actions needed to be applied to solve it?
  • is it from my end(oauth flow) or customer(o365/azure portals settings)?
Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
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  1. sonb 0 Reputation points
    2023-04-03T02:15:03.0166667+00:00

    Check out this once for fixing error Bad User Is Authenticated But Not Connected if you found useful

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