JSoft Mail 

JSoft Mail is a DNS email list manager, designed to handle your in-house mailing and subscription lists. Simple to use, yet powerful, but the best part is that you can download it once and use it for a lifetime.
mail email list subscription manager bulk dns never-send duplicates messages software free download

1st Email Searcher 

1st Email Searcher helps you to search for email addresses in files and folders located on a PC or on the Internet, and place emails to text files. The program lets you find all emails you have on your PC, grab only those of them you need.
mail mailing email e-mail mass bulk mailer address book remailer download free bomber smtp

(STEVEN) 

(STEVEN) The new way to eliminate spam with a newly designed self validation system that puts spam in its place and doesn't rely on key lists.
spam internet email advanced blocking validating self fast .net