Shohei is a multi-language, multi-function, multi-server, multi-user, multi-context, multi-media Web-based mail client, news client, calendar, and note server. Users can be in any number of domains on any number of servers. Web-based administration with different admins for different domains. Features include an online calendar, notes, users' personal Web pages, a news client, and is MIME aware.
Arrow is an elegant, powerful, graphical interface to electronic mail. This is not just another single window mail reader. Instead, it displays each mailbox and message in a separate window, thereby allowing one to simultaneously open as many mailboxes and view and compose as many messages as one wishes. This paradigm also allows one to drag-and-drop text between messages and organize ones mail by dragging messages between mailboxes.