I installed Zimbra desktop last week (version 0.92 build 1433) and it will not properly synchronize my Gmail account. It won't send mail (but it will receive) and it won't synchronize my calendars. I can manually add my Google calendars but they won't update when I make changes on Google.
I don't know how to update the server settings on the Google account in Zimbra. Perhaps there is a problem with the outgoing server? (at least for sending mail. Not sure about calendars.)
I get this error message when I try to edit the account under "setup":
Cannot connect to "SMTP server". Please check host/port and network connectivity.