Scalix email server

Scalix Web Access is so similar to modern desktop e-mail clients such as Outlook and Thunderbird that it's easy to forget you're using a Web-based application. Users can re-sort their inboxes, view messages in a preview pane, and browse messages in different folders -- all without the tedious page refreshes that you might expect from other Web-mail interfaces such as IBM Lotus Domino WebMail or Microsoft Outlook Web Access.