Email address has already been added

Abanoub Halim 11 Reputation points
2022-06-29T17:57:57.24+00:00

I Have used a previous email address from other web hosting. And now Mailserver is moving to MS Server. I wanted to keep IMAP mailbox in Outlook. In addition, I would add this same email address, but it is not because the e-mail address is the same. With Old Outlook program it does not work. What do I have to do?

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Dillon Silzer 57,631 Reputation points
    2022-06-29T23:35:25.043+00:00

    Microsoft is moving away from IMAP and other basic authentication protocols so I would look at using modern authentication to authenticate. Effective October 1, 2022, they will be depreciating basic authentication and you will be forced to use modern authentication.

    Hopefully this helps you on your quest to migrate to Microsoft 365.

    https://learn.microsoft.com/en-us/exchange/clients-and-mobile-in-exchange-online/deprecation-of-basic-authentication-exchange-online

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