TkRat is a graphical Mail User Agent (MUA) which handles MIME. It is mainly written in C but the user interface is done in tcl/tk. The following is a non exhaustive list of the capabilities: * Supports disconnected IMAP folders * Keeps track of number of unread messages in multiple folders * Multilingual interface * Message database * Virtual folders * Message hold * Watcher * Interface to the rest of the mail world * Supports Delivery Status Notifications * Composing * MIME support * Supports PGP/MIME WWW: ${HOMEPAGE}