Free
Bounce Bully 1.0
BounceBully is a free easy to use drag and drop interface for Outlook and OutlookExpress to bounce spam back to spammers. Also, see what country a spam message was sent from.
Trial
Spam Bully 2.0 for Outlook 2000/2002/2003 2.0.0.80
Spam Bully 2.0 for Outlook spam filter uses Bayesian intelligence to quickly learn what you consider spam and not spam. Friends/Spammers lists, blocking by country/language, Allow/Block phrases, bounce spam, customizable interface for your language.
Trial
Spam Bully 2.0 for Outlook Express 5/5.5/6 2.0.0.79
Spam Bully 2.0 Outlook Express spam filter uses Bayesian intelligence to quickly learn what you consider spam and not spam. Friends/Spammers lists, blocking by country/language, Allow/Block phrases, bounce spam, customizable language interface.