I'm testing zimbra v3.1.4 open source edition.

I would like set and get appointment in zimbra and share theme with outlook.
I tried remote calendar plugin, in outlook i'm able to view celander stored in zimbra but not viceversa (if i set an appointment in outlook i can't see it in zimbra).

i used this url:

I think Outlook is able to read it but not write.

How can i share calendar between 2 application?