Hi @navid Talesh ,
Could you share some screenshots about how you configured the account in Outlook after obfuscating all personal information involved?
Below are the settings I used and it works fine at my end. You can compare it with yours and see if there's any difference.
Furthermore, in case the issue is with the cached credentials stored on the machine, it's recommended to clear all stored credentials that have "outlook" in the name via Windows Credential Manager and see how it goes:
If the issue persists, please test your account by clicking the Test Account Settings button and check if there would be any error messages which could help troubleshoot:
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