Forum Discussion

MatoBoost's avatar
MatoBoost
Copper Contributor
Jul 02, 2026

New Outlook: "Changing the ImapRemoteServerInfo is not allowed" after host migration

Hi everyone! I've migrated my domain/mailbox from one IMAP host to another in May. It cannot be added to New Outlook for Windows — fails instantly with INVALID_CREDENTIALS INTERACTION_REQUIRED, even...
office 365
outlook for windows
RickAstley's avatar
RickAstley
Copper Contributor
Sep 09, 2026

I'm having exactly the same issue. Whom can I reach out to at Microsoft to reset the server-side IMAP provider association / ImapRemoteServerInfo for the affected email address? I'm stuck :(

Thank you very much

cc RobertSparnaaij​ 

  • ViktorKoch's avatar
    ViktorKoch
    Copper Contributor
    Sep 14, 2026

    I'm experiencing the same problem with stale ImapRemoteServerInfo as well. Whom could I contact to address this bug? RobertSparnaaij​ 

    • RobertSparnaaij's avatar
      RobertSparnaaij
      MVP
      Sep 15, 2026

      If you are still logged in with the account in New Outlook, remove the account via Settings-> Accounts and choose: Remove the account from all devices. This will delete the server cache as well.

      If you've got a Microsoft Account, you can open a case via that account as well to request removing the cache for address that you are having issues with.

      If you are still running into issues, feel free to reach out to me via a private message with the address that needs to be reset.

      Please note that this will remove the entire server-side cache of the mailbox at Microsoft. You will also lose all data from any folders which do not sync with the IMAP server of your provider.

      This includes all non-mail folders such as Calendar, Contacts, Tasks and Notes, as well as the Drafts folder.

      • MatoBoost's avatar
        MatoBoost
        Copper Contributor
        Sep 15, 2026

        I've contacted you in private messages over 2 months ago, and I am still waiting for your response, I've sent you a message 5 days ago aswell if there was any update.

        Could you please look into it when you are available?

        Also I've tried to open the case before, case can be open only if I have Microsoft 365 Premium, and since I have only Microsoft 365 Basic, I can use only live chat, which was unable to help me 2 times.