kc1di has built claws-mail for VL 6.0.
Package Size: 2567 K
Installed Size: 11640 K
claws-mail: claws-mail (a lightweight andhighly configurable email client )
claws-mail: Claws Mail (previously known as Sylpheed-Claws) is a lightweight and
claws-mail: highly configurable email client and news reader based on the GTK+
claws-mail: GUI toolkit, it runs on the X Window System.
claws-mail: License: GPL
claws-mail: Authors: Claws-mail team
claws-mail: Website: http://www.claws-mail.org/
After testing this package please stop back here and let us know how it works for you.