I was trying myself to use Outlook(2003,2007) on Windows Xp and 7 and It wasn't possible to configure outlook to work with Zarafa 7(on Zentyal 2.2).
The strange things which is happening is that even with firewall stopped I can't telnet on port 236,so is not possible to configure Outlook properly.
Other strange thing is if I,m modifying to server_bind = 0.0.0.0 after a restart or even without restart ,if I check the settings it became 127.0.0.1.What is happening?