@Mail Ajax Webmail

@Mail is a complete Webmail, Mail-server and Groupware solution, with the release of version 4.4 includes a rewrite of the Webmail interface utilizing Ajax. Features include message-drag and drop to folders, emails retrieved from the server via XML and displayed on the Webmail interface directly via the DOM. Message cache support via Ajax is included, to avoid requesting the same data from the server. Live spell-check support for composing emails via Ajax for highlighting misspelt words. Screenshots below of the new AJAX drag and drop, and spell new features introduced in @Mail 4.4 :

You can try @Mail Demo: http://demo.atmail.com/ - Signup for a new account or login to an external POP3/IMAP server. Select interface "Ajax" on the login-page