Peter Walter - 2014-04-27

I set up DavMail & Thunderbird alongside Outlook on my work desktop computer to access my company's Exchange server via https://www.mycompany.com/owa . That setup works fine. I transferred the davmail and Thunderbird setup to my home desktop - but the authentication fails. Accessing OWA via my Firefox web browser works fine. I have tried setting up a debug log, but the log does not show anything useful. I am stumped. Can anyone suggest what to do to try to resolve this issue?