About Squirrelmail
Squirrelmail is a powerful and easy-to-configure WebMail solution that creates a web-based IMAP and SMTP client (POP access is not supported). Perhaps one of its best features is that it is powered completely by PHP and, by default, renders pages in basic HTML with no special scripting. This means that it will work with virtually any web browser released in the past 10 years on any platform. At the same time, you can configure a number of powerful features very simply.