trying to setup davmail in linux with thunderbird for full activesync and cant seem t

trying to setup davmail in linux with thunderbird for full activesync and cant seem to find the owa url?

http://www.linux-answered.com/2012/06/12/use-thunderbird-evolution-with-microsoft-exchange-2007-2010/#more-559

Configure Davmail with the correct settings, in principal only one setting is really required. This is the correct OWA URL. For me this was https://webmail.mycompany.com/OWA

https:///OWA

any help would be appreciated thanks in advance