As some have already noted, one of the cooler things in ZCS 5.0 is 15 languages are pre-installed. (A benefit of joining Yahoo! is access to a global team very experienced with translation and QA).
The languages shipping so far are: Chinese (simplified and traditional), Danish, English (UK, AU, US), French, German, Italian, Japanese, Korean, Polish, Brazilian Portuguese, Russian, Spanish, and Swedish. The Zimbra Web clients, server messages as well as the Outlook Connector and Import Wizard have been translated. In the future we will be adding more languages and hope to get up to 40.
Setting the Language
The language for the default CoS is English (US); administrators can use the CLI interface to change the language for this (or any) CoS, eg:
"zmprov mc default zimbraPrefLocale fr_FR" (for French)
End users can now set their preferred language in the Web Client’s Preferences tab. (Note this preference overrides both the language preference set by Administrators and the language preference in the browser.) Administrators can also add their own languages, when they do the language will appear in the Preferences tab.
Languages and the Community
We believe these languages are big convenience for the Zimbra Community, but we also know that they can always be better. We encourage our moderators and members alike to give us feedback about the quality of the translations by posting or filing bugs.
We also encourage you to maintain the existing community translations (or modify the ones we provide in ZCS) if you feel these version are more appropriate to your personal or business needs. The Sourceforge project is still the best place for this storing and sharing. We will continue to post the lasted strings here.