When your account is set up, the initial synchronization from the account to Zimbra Desktop starts immediately. The initial sync could take several hours if you have a large mailbox or use a slow network connection. You can work in Zimbra Desktop while your account is being synced.
Important: Before you start the sync to download your messages, make sure you have enough disk space.
For the Zimbra account, all email folders, address books, and calendars, including those you created, are downloaded to the Zimbra Desktop, as well as task lists and content from your Briefcase folders. Tags you created and searches you saved are also synchronized.
For Yahoo Mail accounts and Gmail accounts, the Inbox, Sent, and Draft folders are synchronized to the desktop. If you enabled the setting to synchronize calendars and contacts, these folders are also synchronized to the desktop. Your Trash and Spam folders are not synchronized.
For IMAP or POP accounts, the Inbox, Sent, Draft, folders are synchronized to the Zimbra Desktop. Your Trash and Spam folders are not synchronized. If you created other email folders, they are not synchronized initially, but you can sync these folders individually. Contact lists and calendars are not synced to Zimbra Desktop.
After the initial synch, when you are online, the synchronization settings you set for the account determines how often Zimbra Desktop syncs to your account.
For accounts other than the Zimbra account, if you do not want folders to automatically sync, you can turn off sync.
If the network connectivity is lost while the data is synchronized between Zimbra Desktop and the server, when connectivity is restored, the sync resumes where it was interrupted. No data is lost because of the disruption.