Zimbra Desktop is open source email application for accessing yahoo and other email services It is different from other email clients like Mozzila Thunderbird and outlook as it act as both an online and offline in-box.Zimbra Mail. Yahoo! Mail. Gmail. AOL. They all work automatically in Yahoo! Zimbra Desktop; even Outlook or any other work or personal email account using POP or IMAP is easy to set up. The best part—you can read them offline without an internet connection when you are in "airplane" mode.
Yahoo Zimbra provides unlimited storage and support for 20 languages rounds out the feature overview.
Features of Yahoo Zimbra Desktop 1.0
1. Email, contacts, calendar, and documents all in one application
2. Syncs Zimbra, Yahoo! Mail and Gmail email, contacts and calendars
3. Read email from any POP or IMAP email account including AOL, Hotmail or business email
4. Works on Windows, Apple, or Linux desktop computers
5. No limit to the size of your email storage
6. It works online and offline
7. Available in 20 languages