I'm using Ubuntu 18.04 and for some reason while adding my o365 account Im getting an error message.
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Hey! Thanks for reporting this - unfortunately, this looks like a pretty generic password error. Could you try setting up an Office 365 app password and see if that does the trick? https://support.office.com/en-us/article/create-an-app-password-for-office-365-3e7c860f-bda4-4441-a618-b53953ee1183
That's the problem it looks like a password issue but no, I can log in with my corporate password in the web page
I think this will be resolved by #258
Issue not resolved.
Office 365 app password worked for me! Thanks!
It would be nice mentioning that step on this screen:

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Issue not resolved.