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send fails with "enter credentials for steverenold@hotmail on smtp.office365.com"

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The recent upgrade to Thunderbird 115 has resulted in email sending failing with "enter credentials for steverenold@hotmail on smtp.office365.com", this is only a brief popup with a blank page. Another hotmail account is okay as are 2 gmail accounts. I am running Windows 11 fully updated.

The recent upgrade to Thunderbird 115 has resulted in email sending failing with "enter credentials for steverenold@hotmail on smtp.office365.com", this is only a brief popup with a blank page. Another hotmail account is okay as are 2 gmail accounts. I am running Windows 11 fully updated.