I’ve already told you about MozBackup, the freeware backup solution for Mozilla products.
Now I’m going to tell you about MailStore Home. Unlike MozBackup, MailStore Home archives mail from every email account you can imagine “into one secure and persistent backup.”
It works with Outlook 2000, XP, 2003 and 2007. It works with Outlook Express, Windows Mail, Microsoft Exchange Server Mailboxes, Hosted Microsoft Exchange Mailboxes, Thunderbird, SeaMonkey, POP3 and IMAP (including webmail services such as Gmail and Yahoo! Mail) . . . I’m sure if you try really hard, you can find some email service or program it doesn’t work with.
It’s simple, effective, compatible with Windows (XP and up) and free.
Lastly, if you don’t regularly back up your email, you should. In the past 10 years, I’ve gone through five hard drives. Yes, I’m hard on my hardware. So what? The point is, I learned the hard way. You don’t have to.