squirrelmail 2:1.4.8-1ubuntu0.1 (i386 binary) in ubuntu edgy

 SquirrelMail is a standards-based webmail package written in PHP4. It
 includes built-in pure PHP support for the IMAP and SMTP protocols, and
 all pages render in pure HTML 4.0 (with no Javascript required) for maximum
 compatibility across browsers. It has very few requirements and is very
 easy to configure and install. SquirrelMail has all the functionality
 you would want from an email client, including strong MIME support,
 address books, and folder manipulation.
 .
 Homepage: http://www.squirrelmail.org/