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Outlook configuration fails when setting up SMTP/Outgoing Server

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Attempts at configuring Outlook account via Thunderbird for Android always result in an "Authentication Error" when setting up the outgoing server.

Using default settings:

Server: smtp.office365.com Security: StartTLS Port: 587 Authentication: OAuth 2.0 Username: xxxx@outlook.com Client Cert: None

Detailed message says authentication unsuccessful, but I don't get any errors when I login for the Incoming/IMAP server connection.

Attempts at configuring Outlook account via Thunderbird for Android always result in an "Authentication Error" when setting up the outgoing server. Using default settings: Server: smtp.office365.com Security: StartTLS Port: 587 Authentication: OAuth 2.0 Username: xxxx@outlook.com Client Cert: None Detailed message says authentication unsuccessful, but I don't get any errors when I login for the Incoming/IMAP server connection.

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