1. Bleeding edge version of the Sylpheed mail client Sylpheed Claws is a bleeding edge version of the Sylpheed mail client which has the most advanced features designed to be included in Sylpheed. It features the same features Sylpheed does: * Very good performance * Easy configuration and operation * Multiple accounts * High flexibility And more: * Better mail/news composing handling; * More advanced ways of handling headers and attachments; * More powerful handling of MIME types. * Per-folder default reply-to address and threading mode configuration; * Pixmap theming If you care for stability rather than more flexibility, use 'sylpheed' instead. From Debian 3.0r0 APT