Roundcube Webmail is now available to WebsitePanel users in addition to Squirrelmail. WebsitePanel users can access webmail options by using "http://mail.domain.com/webmail". (Replace domain.com with your actual domain).
Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.