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Outlook | Windows | New Outlook for Windows | For home
Using New Outlook on Windows for personal email, calendar, and contact management
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Hi. I'm Brian and I'll try to help.
You're using the wrong port number. The correct port for IMAP incoming connections is 993 with SSL/TLS encryption enabled. Also, you must enable IMAP access by logging into https://outlook.live.com/mail/0/options/mail/forwarding. This article explains the settings: https://support.microsoft.com/office/d088b986-291d-42b8-9564-9c414e2aa040. You really should allow eM Client to configure the account for you. See https://www.emclient.com/webdocumentation/en/9.2/eMClient/Content/Accounts/Create%20New%20Account.htm
Note that this last web site is not a MIcrosoft web site, but it appears to contain accurate information and no unwanted apps. It may use cookies and trackers, though, so be aware.