Binary package “imp4” in ubuntu quantal

webmail component for horde framework

 IMP is the Internet Messaging Program (formerly, among other things, the IMAP
 webMail Program), a PHP-based webmail system and a component of the Horde
 project. IMP, once installed, accesses mail over IMAP thus requiring little
 to no special preparations on the server on which mail is stored.
 IMP offers most of the features users have come to expect from their
 conventional mail programs, including attachments, spell-check, address books,
 multiple folders, and multiple-language support.