Best way to track changes?
I have a need where I have to track changes to events and contacts and a change occurs, to send a notification to an external application. For example, User A deletes a contact from his iPhone, Zimbra Mobile is notified of the change, and after the contact must be deleted to an another application (via a Web service or other way).
Does the only way to achieve this is to modify ZCS source? Can we modify the source even if it's a Network Edition installation?
ZCS 6.05 on CentOS 5.3 (VMWare ESX 4)