sylpheed-claws 1.0.5-5.1ubuntu0.1~dapper3 (amd64 binary) in ubuntu dapper

 Sylpheed Claws is an extended 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