Free/Busy Interop

[borngunners]

Hello,
I am trying to have my zimbra users connect with an exchange calendar in a different domain than mine. I have looked at the Wiki and does not see anywhere that two different domains can share calendar. This is my goal:

I want my users to be able to manage their calendars from the other domain on their zimbra calendar and users in the other domain able to view their calendar and schedule meeting with my users. They should also be able to see resources on either end.

My users have another different account in the other domain with different userid and password. I was able to create a GAL to the other domain successfully. What is challenging now is establishing the connection to the Exchange server and the users managing their calendar on zimbra instead of trying to have outlook open to manage their calendar....

Any suggestions will work...

Thanks in advance