MailRaider by Pascal Harris seems to work well with my initial use and, best of all, it's free:
Are you a Switcher? Have you got old e-mails archived somewhere? Have you ever wished that your Mac could read your old Microsoft™ Outlook .msg files? If so, MailRaider could be just what you need. Try it. And let me know how you get on.
I've tested it with simple .msg files and ones with attachments and it seems to work very well.
