squirrelmail RPM package for Red Hat / Fedora / Aurora

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) for maximum
compatibility across browsers.  It has very few requirements and is very
easy to configure and install. SquirrelMail has a all the functionality
you would want from an email client, including strong MIME support,
address books, and folder manipulation.