Yahoo! Subsidiary Zimbra has released Beta 3 of its outlook competitor Zimbra Desktop.
The program already features off-line functionality, allowing emails to be written and composed in places without an internet connection.
Composed messages can also be set to be sent the next time an internet connection is detected.
New in beta three is IMAP synchronising for all Yahoo! free and paid email accounts, the ability to launch the client on the click of a mailto: address, and the addition of a display showing the number of unread emails in the tray icon.
The client can be downloaded at http://www.zimbra.com/products/desktop.html