I'm new to Zimbra, but I don't think that ZCO is required. I'm using ZD to hit Exchange, not Outlook to hit ZCS. If I understand ZCO correctly, it is designed to help Outlook connect to ZCS. In my...

I'm in a similar boat and would love some guidance here. I have 11 accounts: 1 ZCS, 2 Exchange, 6 Google Apps, 2 GMail. The ZCS works fairly well, and the Googles work pretty well. But the 2 Exchange...