Hello, In my organzation we are using 2 systems Linux (atmail) And Exchange 2007. I have a question regarding the calendar features. Free/busy status is up and running for all users from Atmail using external clients. Compatibility between the users is based on sending the request (scheduled task) from atmail user to exchange which based on the client will add a task automatically to the calendar. I need to host all the users (all exchange + atmail) in one calendar server as there is no known for me and apparently to google way to sync Caldav with exchange. --> I would like to know if it would be possible to sync Caldav with exchange? --> I would like to know the steps that I should take to gather the calendar server on Exchange 2007? Thanks to all in advance Graig

Per my knowledge, the only possible method would be to develop complete software synchronization between Exchange and CalDAV calendars Please use the “Development” forum where the experts might provide useful information about the programming procedure for such taskJames Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com