That's because you don't have another copy of the local data in a server mailbox from which you can recover. It is important to backup your mailbox data periodically, and especially important to backup your local data. In an IMAP mailbox, including Yahoo!, Gmail, AOL, Exchange, or other types of IMAP account, emails under folders being synced are sync data, but emails in folders with sync turned off are local data. In a Zimbra mailbox, all data is sync data except the data you moved under Local Folders in ZD. What are local data? Local data are data that don't exist on the server with which ZD synchronizes, whereas sync data are data that exist on both your computer and on the remote server. Data still in your mailboxes on the server can be downloaded again once you setup a new ZD install. If my hard drive dies and I have no data backup, do I lose all my data? You will lose all your local data. Any folder with sync turned on will have a small green dot to its left. However turning sync on on the Spam folder may download mail items containing virus and therefore not recommended. You can turn sync on for folders such as Spam and Trash. The only exceptions are Spam and Trash, as well as folders that can only exist locally such as Outbox. If you chose to sync All folders, then most folders will be synchronized with server. For IMAP mailboxes, how do I know which folders are being synchronized with the server? If at setup you chose to sync Inbox only, only Inbox is synchronized. We generally refer to the data that only exist locally in ZD and not on the server as local data. For POP accounts, all data are stored locally only once they are downloaded. Also for these accounts, currently ZD does not synchronize user preferences with the server. Any data under folders with sync turned off may not be in sync with the server. For Yahoo! Mail, Gmail, Windows Live, AOL, Exchange, and other IMAP mailboxes, it depends on which set of folders you choose to synchronize. The only data not in sync with the server are data you moved under "Local Folders" in ZD and the changes you made since the last synchronization. For Zimbra accounts, virtually 100% of data is synchronized with the server, including user preferences. Are all my data in ZD always in sync with my data in mailboxes on remote servers? That depends on the type of account, what you choose to synchronize, and how often ZD synchronizes with remote servers. It is important that you choose a secure file system and not give others access to your computer. Is my data stored on my computer secure? Currently ZD does not provide application level encryption. ![]() You will find this feature under your Options tab on ZD. However we recommend users do backup using the import/export features provided by ZD instead. If you choose to do file based backup, you must first shutdown the ZD back end service before running any types of backup. Can I backup the data in those 3 user data folders by simply copying them to another location? While that is possible, it is not recommended. These 3 folders contain all user data stored by ZD, and any direct modification to these data will result in corruption and possible data loss. In addition, indexes on data are stored under /index. Metadata is stored in an Apache Derby database under /derby. Where are the data stored? Actual data is stored as files under /store, where each item is a single file. This feature allows ZD users to access all data when offline. Note: For information about recent releases of Zimbra Desktop, see the Zimbra Desktop section on the Wiki Main Page How much data is stored on a user's computer? ZD is designed to copy all a user's data and store it locally on the user's computer. This article is a Work in Progress, and may be unfinished or missing sections. Synchronizing data on Zimbra Desktop 1.0 - FAQ 1.13 Can I synchronize data in YZD to a mobile device, like iPhone for example?.1.12 Can ZD synchronize contacts and calendar with an Exchange Server?.1.11 Can I install ZD on multiple computers and make them synchronize with the same account?.Why are those changes not reflected in ZD? 1.10 I made read or deleted some messages using a different client.1.9 How often does ZD synchronize with remote servers?.1.7 If my hard drive dies and I have no data backup, do I lose all my data?.1.6 For IMAP mailboxes, how do I know which folders are being synchronized with the server?. ![]() 1.5 Are all my data in ZD always in sync with my data in mailboxes on remote servers?.1.4 Is my data stored on my computer secure?.1.3 Can I backup the data in those 3 user data folders by simply copying them to another location?. ![]() 1.1 How much data is stored on a user's computer?.1 Synchronizing data on Zimbra Desktop 1.0 - FAQ.
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