Zimbra Desktop 1.0 FAQ

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General Questions

What is Zimbra Desktop?

Zimbra Desktop is a free and open source email software application. It's cross-platform, available on Windows, Mac OS and Linux. Zimbra Desktop can work with many types of servers to synchronize email, contacts and calendar data between user's mailboxes on servers and local data stored on your computer disk. While synchronization requires network connectivity, Zimbra Desktop can be used when the user's computer is not connected to the network.

Why should I use Zimbra Desktop instead of other email software?

While similar to competing products like Outlook and Thunderbird, Zimbra Desktop offers users many advantages not found elsewhere. See here for a high level feature comparison.

Is Zimbra Desktop really free?

Yes. Zimbra Desktop is open source and free. We make both the software code and the application itself available to anyone at no charge. Please see here for license information.

Does Zimbra Desktop contain any spyware?

Absolutely not. In fact 100% of the Zimbra Desktop code is open source so everything the software does it open to the public.

What types of accounts are supported by Zimbra Desktop?

To date, Zimbra Desktop supports the following account types:
  • Zimbra
  • Yahoo! Mail
  • Gmail
  • Windows Live Mail
  • AOL Mail
  • Microsoft Exchange (IMAP access only)
  • Other email services providing POP3 or IMAP4 access

What is a Zimbra account?

A Zimbra account is hosted by a server running the Zimbra Collaboration Suites (ZCS) servers. In order to use Zimbra Desktop with your Zimbra account, your service provider or your employer must be running ZCS 5.0 or later.

Do I need a Zimbra account in order to use Zimbra Desktop?

Not at all. You can use Zimbra Desktop with any types of accounts we support.

Can I setup multiple accounts of the same or different types in one installation?

Yes. You can setup as many or as few accounts as you need. For example, you can setup two Yahoo! Mail accounts of different usernames or domains, one Gmail account, and one POP3 account for your company's POP server.

Is Zimbra Desktop available in my language?

To date, Zimbra Desktop supports the following languages:
  • Chinese (Simplified) - 中文 (简体)
  • Chinese (Traditional) - 中文 (繁體)
  • Danish - Dansk
  • Dutch - Nederlands
  • English (AU)
  • English (GB)
  • English (US)
  • Spanish - Español
  • French - Français
  • German - Deutsch
  • Italian - Italiano
  • Japanese - 日本語
  • Korean - 한국어
  • Polish - polski
  • Portuguese (Brazilian) - Português (do Brasil)
  • Russian - Русский
  • Swedish - Svenska

How do I get help with using the software?

First, we recommend that you read this FAQ. Secondly, the Zimbra Desktop Wiki page has a lot of information about the latest release. Thirdly, you can read the help pages at http://www.zimbra.com/desktop/help/en_US/Zimbra_Mail_Help.htm or a localized version in your language. Finally, you can get help on the Zimbra Desktop forum. When posting to the forum, please always include:
  • the version number and build number. (Find this in the envelope icon, About Zimbra Desktop section. The icon displays in the Windows Tray or in the Mac Dock row)
  • what platform (Windows, Mac, Linux)
  • what mail service (ZCS, Yahoo! or Gmail, etc)

I found a bug. How do I report it?

Go to Zimbra Bugzilla to file a ticket. It will greatly help Zimbra engineers to investigate your issue if you include as much information as possible, including how one might be able to reproduce what you see. Sometimes screenshots can help. Please always tell us:
  • the version number and build number
  • what platform
  • what mail service (ZCS, Yahoo! or Gmail, etc)
If this is your first time, you will need to register an account with your email address. By doing this you will be notified on every update to the bug you file.

I have this brilliant idea to make Zimbra Desktop 10 times better. How do I get it into the product?

Go to Zimbra Bugzilla to file a ticket. Select "enhancement" as Severity. We always love to hear cool ideas.

Download and Install

What are the prerequisites of installing and running Zimbra Desktop?

Before you start, you should check out the Zimbra Desktop wiki page where you can read about the latest release and known issues.

Where do I download the installer?

Go here to download the installer for your platform.

What platforms do Zimbra Desktop support?

Zimbra Desktop can run on Windows XP (x86), Windows Vista (x86), Mac OS X Tiger (Intel), Mac OS X Leopard (Intel), a variety of Linux (i686) flavors including Ubuntu, Debian, Fedora, Suse and others.

Where is the install location?

While you can choose to install to any folder on your computer, the default location is under the home directory of your system. In particular, these are the default paths on their respective platforms.
  • Windows XP - C:\Documents and Settings\<username>\Local Settings\Application Data\Zimbra\zdesktop
  • Windows Vista - C:\Users\<username>\AppData\Local\Zimbra\zdesktop
  • Mac OS - /Users/<username>/zimbra/zdesktop
  • Linux - /home/<username>/zimbra/zdesktop
In the rest of this FAQ we will refer to the install location as <install>.

I installed a previous version of Zimbra Desktop. Can I upgrade?

If you are running build 1083 or later, you can upgrade by simply running the installer of the latest release. The installer will migrate existing data if necessary. If you are running a version earlier than build 1083, you must first do a clean uninstall of the old version and delete all data on your computer before proceeding.

I'm an existing Zimbra Desktop user and today a dialog pops up asking me to upgrade. What should I do?

When running, Zimbra Desktop periodically checks for new updates. If there is an update, it will ask the user to upgrade. To start the upgrade, all you need to do is to click the Install button and follow the wizard.

How do I know which version/build I'm running?

Run Zimbra Desktop. On Windows Zimbra Desktop has a tray icon in the system tray. Right click the tray icon and select About Zimbra Desktop. The About dialog will show your version and build number. Please remember to always include your version and build number when reporting issues.

How to install spell checker dictionaries?

Zimbra Desktop includes one default spell checker dictionary of U.S. English (en-US). You may follow these steps to install dictionaries in other locales we support.
(1) Download the dictionaries from these links:
   da     Dansk
   de     Deutsch
   en-GB  English(UK)
   es-ES  Español(de España)
   fr     Français
   it     Italiano
   nl     Nederlands
   pl     Polski
   pt-BR  Português(do Brasil)
   ru     Русский
   sv     Svenska
(2) Unzip the dictionary package to the "dictionaries" directory. Depending on which OS you are running, the directory location is:
  • Windows: <install>\win32\prism\xulrunner\dictionaries
  • MacOS: <install>/macos/prism/Prism.app/Contents/Frameworks/XUL.framework/dictionaries
  • Linux: <install>/linux/prism/xulrunner/dictionaries
(3) Edit <install>/profile/user.js file and set correct locale to "spellchecker.dictionary" user preference. For example, if you want to use U.K. English dictionary, you should have this line in your user.js:
user_pref("spellchecker.dictionary", "en-GB");
(4) Restart Zimbra Desktop.

Running Zimbra Desktop

How do I run Zimbra Desktop?

If you have chosen to put a shortcut on your desktop, you can launch Zimbra Desktop by double clicking the Zimbra Desktop icon there. In addition, on Windows there's a shortcut added to the Start menu and on Mac under Applications.

How do I shutdown Zimbra Desktop?

On Windows clicking the "x" on the upper right corner of the window only minimizes Zimbra Desktop to the system tray. To shutdown Zimbra Desktop, either select "Quit" from the window system menu, or right click on the tray icon and select "Quit". On Mac and Linux, simply closing the window will shutdown Zimbra Desktop.

Can I still receive new mail when Zimbra Desktop is not running?

Yes. The graphic user interface of Zimbra Desktop is only the front-end of the software. There's also the back-end service running behind the scene. The back-end service is responsible for synchronizing data with various remote servers on a user-defined schedule. The Zimbra Desktop service continues running even after you quit the Zimbra Desktop GUI, but at a lower sync frequency when the GUI front end is not running.

I don't use Zimbra Desktop very often and sometimes I want to free up more memory. How do I shutdown the Zimbra Desktop back end service?

If the Zimbra Desktop GUI is running, to shutdown Zimbra Desktop, on Windows in the tray icon menu select "Shutdown Service", and on a Mac, you can use the Dock icon menu to do that. On Linux you have to shutdown Zimbra Desktop using a terminal window. In a terminal window, 'cd' into <install> and run './zdesktop stop'.
In addition, you can also use the Control Panel Service Manager to shut the service down on Windows. Note that once you shutdown the back end service, Zimbra Desktop will no longer synchronize data with any remote server until you start it up again.

How do I start the Zimbra Desktop back end service after I stopped it?

Simply launching Zimbra Desktop GUI will automatically start the service if it's not already running.

Does the Zimbra Desktop service automatically starts after system reboot?

It auto-starts on Windows and Mac, but not on Linux.

Is there a way to disable auto-start?

On Windows you can use the Control Panel to change the service to start "manually". On Mac you will need to modify the ~/Library/LaunchAgents/com.zimbra.zdesktop.plist file. How to change launchd program is beyond the scope of this FAQ, but you can find information online.

Data Synchronization

How much data is stored on a user's computer?

Zimbra Desktop is designed to copy all a user's data and store it locally on the user's computer. This feature allows Zimbra Desktop users to access all data when offline.

Where are the data stored?

Actual data is stored as files under <install>/store, where each item is a single file. Metadata is stored in an Apache Derby database under <install>/derby. In addition, indexes on data are stored under <install>/index. These 3 folders contain all user data stored by Zimbra Desktop, and any direct modification to these data will result in corruption and possible data loss.

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. If you choose to do file based backup, you must first shutdown the Zimbra Desktop back end service before running any types of backup. However we recommend users do backup using the import/export features provided by Zimbra Desktop instead. You will find this feature under your Options tab on Zimbra Desktop.

Is my data stored on my computer secure?

Currently Zimbra Desktop does not provide application level encryption. It is important that you choose a secure file system and not give others access to your computer.

Are all my data in Zimbra Desktop 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 Zimbra Desktop synchronizes with remote servers. For Zimbra accounts, virtually 100% of data is synchronized with the server, including user preferences. The only data not in sync with the server are data you moved under "Local Folders" in Zimbra Desktop and the changes you made since the last synchronization. For Yahoo! Mail, Gmail, Windows Live, AOL, Exchange, and other IMAP mailboxes, it depends on which set of folders you choose to synchronize. Any data under folders with sync turned off may not be in sync with the server. Also for these accounts, currently Zimbra Desktop does not synchronize user preferences with the server. For POP accounts, all data are stored locally only once they are downloaded. We generally refer to the data that only exist locally in Zimbra Desktop and not on the server as local data.

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. If you chose to sync All folders, then most folders will be synchronized with server. The only exceptions are Spam and Trash, as well as folders that can only exist locally such as Outbox. You can turn sync on for folders such as Spam and Trash. However turning sync on on the Spam folder may download mail items containing virus and therefore not recommended. Any folder with sync turned on will have a small green dot to its left.

If my hard drive dies and I have no data backup, do I lose all my data?

You will lose all your local data. Data still in your mailboxes on the server can be downloaded again once you setup a new Zimbra Desktop install.

What are local data?

Local data are data that don't exist on the server with which Zimbra Desktop synchronizes, whereas sync data are data that exist on both your computer and on the remote server. In a Zimbra mailbox, all data is sync data except the data you moved under Local Folders in Zimbra Desktop. 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. It is important to backup your mailbox data periodically, and especially important to backup your local data. That's because you don't have another copy of the local data in a server mailbox from which you can recover. It's also worth noting that when you choose to delete or reset a mailbox, all data including local data will be deleted from your local computer. Therefore you must make sure to have a backup of all your data, especially local data, before you delete or reset a mailbox.

How often does Zimbra Desktop synchronize with remote servers?

That depends on the sync schedule you choose for each of your accounts. Zimbra accounts supports the option to synchronize whenever your mailbox on the server has any new changes, we refer to this as "push". Zimbra Desktop currently doesn't support "push" for other types of accounts. You can also force an immediate sync by clicking on the "Send/Receive" button of that account. If there are outgoing messages in your Outbox, sync will run immediately unless your sync schedule is set to "manual". With "manual" setting you must click the "Send/Receive" button to even send outgoing messages. It's also worth noting that for non-Zimbra accounts Zimbra Desktop only downloads new messages in Inbox from remote server in regularly scheduled sync cycles. In order to synchronize all data, you must click on the "Send/Receive" button. For Zimbra accounts, Zimbra Desktop can synchronize all changes on every run. Finally when the Zimbra Desktop GUI is not running, sync frequency will be lowered to at most once an hour.

I made read or deleted some messages using a different client. Why are those changes not reflected in Zimbra Desktop?

For any non-Zimbra mailbox, scheduled sync will only download new messages. In order to synchronize other changes such as unread flag changes and deletions you have to click the "Send/Receive" button to do a manual synchronization.

Can I install Zimbra Desktop on multiple computers and make them synchronize with the same account?

Absolutely. Just remember for non-Zimbra mailboxes you have to click "Send/Receive" in order to see changes you made from one install in other installs.

How do I uninstall Zimbra Desktop?

You can uninstall Zimbra Desktop by running the uninstaller. The uninstaller is located under the folder where you installed the Zimbra Desktop software. On Windows you can also use "Add or Remove Programs" to uninstall.
(1) Run the uninstaller and follow the on-screen instructions.
(2) By default the uninstaller will only remove the software and will leave any downloaded data intact. This allows future software upgrades without resyncing mailbox data from scratch. If however you intend to delete all data as well, you can check the “DELETE ALL DATA” checkbox during uninstall. Alternatively, you can first use the uninstaller to remove the software and then simply delete the entire folder where Zimbra Desktop was installed.
(3) For a clean uninstall, make sure the existing install folder is completely removed.

I ran into an error when uninstalling Zimbra Desktop. What do I do now?

Sometimes due to unexpected install failures, uninstall will fail. If the uninstall process fails, use the following steps to manually uninstall Zimbra Desktop.
NOTE: These steps are for experienced users only. If you are not comfortable with changing system settings, STOP!
On Windows
(1) Close the GUI client window. The GUI client can minimize to tray, so make sure you actually quit it. In Task Manager the name of the GUI client process is zdclient.exe.
(2) Make sure that the Zimbra Desktop service is not running. In Task Manager the name of the service is zdesktop.exe. If it is, use the Service Manager to stop the service. If that fails to stop, you can use the Task Manager to stop the process.
(3) Use the registry editor (regedt32) to remove the uninstaller entry in "Add or Remove Programs." Find and delete the Zimbra Desktop entry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.
(4) Use the registry editor to remove the Window service. Find and delete the Zimbra Desktop entry under HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services.
(5) Delete the installation directory. Note that if you want to preserve mailbox data, don't delete these 3 folders: derby, store, index.
(6) Reboot Windows. This is important for your registry updates to take effect.
On Mac OS
(1) Close the GUI client window.
(2) Make sure that the Zimbra Desktop service process is not running. It is a java process. If the service process is running, open a terminal window and cd into the install directory. Then run the following at the command line:
       ./zdesktop stop
If that fails to stop the service, you can terminate the process using the Activity Monitor GUI.
(3) Delete the install directory. Note that if you want to preserve mailbox data, don't delete these 3 folders: derby, store, index.
(4) In the terminal window type the following to remove the launched agent:
       launchctl stop com.zimbra.zdesktop
       launchctl remove com.zimbra.zdesktop
       rm ~/Library/LaunchAgents/com.zimbra.zdesktop.plist
On Linux
(1) Close the GUI client window.
(2) Make sure that the Zimbra Desktop service process is not running. It is a java process. If the service process is running, open a terminal window and cd into the install directory. Then run the following at the command line:
       ./zdesktop stop
(3) Delete the install directory. Note that if you want to preserve mailbox data, don't delete these 3 folders: derby, store, index.

When Things Go Wrong

At the end of installation, I see Zimlets injection failure and the UI window says it can't connect to the server. What's wrong?

This means that the back end server can't be reached on localhost port 7633. The same error however have many different causes:
  • The server didn't start up. - Check if the back end process is running. On Windows the process is zdesktop.exe, and on Mac/Linux it's a java process. If the back end server is not running, check <install>/log/zdesktop.out and <install>/log/zdesktop.log for errors.
  • The server can't bind to port 7633. - Maybe the port is taken by a different application, but this is rare.
  • A system firewall blocks access to localhost port 7633. - Such firewalls are more popular on Windows than on other platforms. If you are using a Windows firewall, check its settings.
  • System is misconfigured and localhost can't be resolved. - Many Mac OS computers have this issue. If you are on Mac OS, try the following steps:
  1. Make sure localhost is resolved to on this computer.
  2. Make sure your computer has a name. You can set that under System Preferences -> Sharing. Also make sure computers on your network can access your computer at <computername>.local.
  3. If it still fails, the last resort is to change the binding of the back end server from localhost (loopback) interface to all interfaces. Open the config file <install>/jetty/etc/jetty.xml with a text editor and remove the line <Set name="host">localhost</Set>. Save the file and then restart the back end server.

My emails stopped coming in. What's wrong?

It could be that synchronization with remote server encountered an error. Some errors are recoverable, like when the remote server is temporarily unavailable or your network connectivity is down. First look at the sync indicator on the title bar above the folder tree on the left. When things are working, there should be a green dot indicating the mailbox is online and well. If you see a red square, you are having connectivity issue with the server which is typically temporary. When the indicator is a red dot with an exclamation point, an error has been encountered during sync. Mouse over the red dot to see a tooltip with more information.

What do I do when I'm blocked by an error?

If your sync cycle always ends in error with the red dot indicator, you may have found a bug in the software. To help us debug the issue, first collect some debug information. In the mailbox search box on the top left (not the web search box on the right), type in "$set:debugtrace on" (without the quotes) and hit enter/return. You'll see a green popup saying debug trace is turned on. Then click the Send/Receive button to manually force a sync and wait for the spinning indicator to turn into the red error indicator. Then open the log file <install>/log/zdesktop.log and find the trace section of lines between
   ============================== SYNC DEBUG TRACE START ==============================
   ============================== SYNC DEBUG TRACE END ================================
If you have multiple such sections, find the last trace section. Then post the issue to the Zimbra Desktop Forum with the trace. If the trace is too long, put it in a file and attach to the post. Alternatively you can also file a bug on Zimbra Bugzilla, choose Desktop Client as component, and attach the trace to the bug. If the trace contains information you do not wish to make public, mark the bug as private so that only Zimbra employees can access it.

I'm seeing some UI display issues. How do I correct that?

It's often hard to tell between a UI display issue and a data issue. However if you suspect there's something wrong with the display, you can try a few things to verify. First, click on the folder in the left folder tree pane, this will cause a refresh and displays the content of that folder. This applies to not only mail but also contacts, calendar and other data types. Secondly, you can use the Shift+F5 shortcut to force a fresh of the UI, which is equivalent to closing and relaunching the UI window. If the issue goes away after doing so, it's a display issue.

The UI does not load at all, or some parts of the UI are left blank, what should I do?

First, check the log file located at <install>/log/zdesktop.log. If the problem is caused by the back end service you will see some errors in the log. Secondly, try using a Web browser to display the UI and see if you get the same behavior. Firefox is the preferred choice because the UI display engine we use in Zimbra Desktop is based on Mozilla software. To use Firefox or any other browsers to display Zimbra Desktop UI, you first need to find your personalized URL. Open the file <install>/zdesktop.webapp/webapp.ini with a text editor and find the "uri" key, and the value after "uri=" is the URL to use with your browser. The URL will look something like this:

When checking for errors in the log file, what do I look for?

An error often generates an exception stack which helps pinpoint where it was originated in the code. An exception stack looks something like this:
           at com.zimbra.common.service.ServiceException.FAILURE(ServiceException.java:253)
           at com.zimbra.cs.datasource.ImapSync.connect(ImapSync.java:147)
           at com.zimbra.cs.datasource.ImapSync.importData(ImapSync.java:118)
           at com.zimbra.c s.datasource.DataSourceManager.importData(DataSourceManager.java:154)
           at com.zimbra.cs.mailbox.LocalMailbox.importData(LocalMailbox.java:327)
           at com.zimbra.cs.mailbox.LocalMailbox.syncAllLocalDataSources(LocalMailbox.java:300)
           at com.zimbra.cs.mailbox.LocalMailbox.sync(LocalMailbox.java:357)
           at com.zimbra.cs.mailbox.LocalMailbox.syncOnTimer(LocalMailbox.java:282)
           at com.zimbra.cs.mailbox.DesktopMailbox$1.run(DesktopMailbox.java:117)
           at java.util.TimerThread.mainLoop(Timer.java:512)
           at java.util.TimerThread.run(Timer.java:462)
   Caused by: com.zimbra.cs.mailclient.CommandFailedException: LOGIN failed: LOGIN failure. Server Error-Please try again after some time.
           at com.zimbra.cs.mailclient.imap.ImapRequest.checkStatus(ImapRequest.java:94)
           at com.zimbra.cs.mailclient.imap.ImapRequest.sendCheckStatus(ImapRequest.java:80)
           at com.zimbra.cs.mailclient.imap.ImapConnection.sendLogin(ImapConnection.java:118)
           at com.zimbra.cs.mailclient.MailConnection.login(MailConnection.java:205)
           at com.zimbra.cs.datasource.ImapSync.connect(ImapSync.java:143)
           ... 9 more
When providing information on an error from log file, please include at least a few lines before and after the exception stack to be complete.

I see a popup error saying something is wrong when I try to perform a task. What should I do?

You should check the log file located at <install>/log/zdesktop.log for possible errors near the end. It will also be very helpful to get the soap debug trace between the UI front end and the back end service. To collect the soap trace, you will need to use a Web browser like Firefox. Make sure the browser allows popup windows. You also need to find your personalized URL. Open the file <install>/zdesktop.webapp/webapp.ini with a text editor and find the "uri" key, and the value after "uri=" is the URL, which will look something like this:
Now add an additional '&dev=1' parameter at the end of your personalized URL like this:
When you navigate to this URL, the browser will pop up a soap trace window during loading of the UI. Wait for the UI to be fully loaded, perform the same task you had trouble with, make sure the same popup error happens, and provide the entire content of the soap trace window. Please note that the soap trace often contains private data so it's a good idea to file a "private" bug on Zimbra Bugzilla, choose Desktop Client as component, and attach the trace to the bug. A bug marked "private" is only accessible by the reporter and Zimbra employees.

What additional information can I collect to debug a UI display issue?

In the Zimbra Desktop UI window, use Shift+F6 to reveal the status bar on the bottom. Click on the Settings icon at the right end of the status bar and select Tools -> Error Console. Then click "Errors" on the top to filter out non-error information. If there are any errors they will be helpful in debugging your issue.


Can Zimbra Desktop run on 64-bit Windows or Linux?

While many users have reported success of running Zimbra Desktop on 64-bit Vista and Linux, it is not officially supported.

Can Zimbra Desktop run on a multiuser system?

While the answer is yes, with the current version only one user can use it. On UNIX platforms (Linux/MacOS), Zimbra Desktop CANNOT be installed or run by root user.

Can I migrate emails from another mail application, like Outlook, Thunderbird or Eudora to Zimbra Desktop?

Not with the current version.

Can Zimbra Desktop synchronize contacts and calendar with an Exchange Server?

The current version can only synchronize messages using IMAP with an Exchange Server, assuming IMAP is enabled on the server. However we plan to support other types of data including contacts and calendar with Exchange Servers in a future release.

Can I synchronize data in Zimbra Desktop to a mobile device, like iPhone for example?

Not with the current version, but this feature is planned for a future release.

Feature Comparison with Competing Products

Zimbra Desktop Outlook Thunderbird
Cross Platform Windows, Mac OS, Linux Windows Only Windows, Mac OS, Linux and more
Cost Free Commercial License Free
Open Source 100% No 100%
Multiple users on same Desktop or Laptop No - Version 1.0.4 does not allow installation for multiple users Yes - Each user has own profile Yes - Each user has own profile
Support Enterprise Collaboration Server Zimbra Collaboration Suite Microsoft Exchange Server No
Identical UI as Enterprise Collaboration Server Web UI Yes No No
Integrated Calendar Yes Yes Via Lightning extension, not production quality
Corporate Address Book Yes Yes No
Documents, Tasks and Briefcase Yes Tasks only No
Groupware Sharing and Delegation Yes Yes No
Yahoo! Mail Support Yes No Via WebMail extension, not production quality
Yahoo! Address Book Support Yes No No
Yahoo! Calendar Support Yes No No
Gmail Mail Support Yes Yes Yes
Google Address Book Support Yes No No
Google Calendar Support Yes No No
Windows Live Mail Support Yes Yes Via WebMail extension, not production quality
Windows Live Address Book Support Yes Yes No
Windows Live Calendar Support ? ? ?
POP3 Support Yes Yes Yes
IMAP4 Support Yes Yes Yes
Email Address Auto Complete Yes Yes Only previously mailed contacts
Drag and Drop from Desktop Yes No No
Support Tagging All Data Types Yes No No
Conversation View Across Folders Yes No No
Usable When Offline Yes Yes Yes
Seamless Online/Offline Transition Yes Yes No
Access All Data Offline Yes Does not download all data by default Does not download all data by default
Manage Multi-GB Mailboxes Yes Slow Slow
Search across Multi-GB Data Index based, fast Limited and slow Limited and slow
New Mail Notification Yes Limited Limited
Themes and Colors Yes No Yes
Auto Update Yes Yes Yes
Extensibility Zimlets Plugins Extensions

Verified Against: ZD 1.0 Date Created: 12/31/2008
Article ID: https://wiki.zimbra.com/index.php?title=Zimbra_Desktop_1.0_FAQ Date Modified: 2015-03-25

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