SquirrelMail X was inspired by the developer's need to access mail and address books from anywhere in the world.
The big downside of SquirrelMail X however is that its very complicated to setup. Only those that are experienced Mac users or programmers will be able to fathom how to setup SquirrelMail X despite the extensive user guide and documentation. However, if you're willing to make the effort, it looks clean and easy to use albeit a little sparse. Some of those that have installed SquirrelMail X have found it even more useful than Outlook Webmail and Entourage so it can't be that bad.
SquirrelMail X is an impressive webmail app but you'll need to be a bit of a whizz or have a lot of patience, to figure out how to install it.
- Protect message deletion with security token system. (Secunia Advisory SA34627).