As an archiving solution for individuals, MailStore Home is a hidden gem, and one we're guilty of not giving enough exposure here on the blog.  In a nutshell, MailStore Home solves two of the biggest problems you're likely to face as a home user with a personal email account(s):
  1. How to find specific emails quickly when they're buried among hundreds of messages from GroupOn 
  2. How not to lose your email should your hosting provider spontaneously combust