Can't add an Office 365 email account to Outlook, even …
https://answers.microsoft.com/en-us/outlook_com/forum/all/cant-add-an-office-365-email-account-to-outlook/00802d52-5c44-4909-8af7-943e9fede24b
Jan 30, 2018 · sign into the Office 365 account you want to add to Outlook client at www.office.com/signin. Click Settings, and then under My app settings, choose Office 365. On the My account page, choose Subscriptions. Check if you have the Exchange change online service license as I marked in the picture.
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