Set up your email to forward every email you send or receive to a Gmail account.
You do it in Outlook Express by creating a rule. Tools > Message Rules > Mail. If I could do it, it's easy. Or just press Help > Index and enter "rules".
Problem: All of your junk mail, and I have plenty, also gets forwarded.
Solution: Chuck sez: don't worry about your junk email going to Gmail since you'll be accessing the stuff you need using Gmail's search function which will wade through it quickly.