As a matter of fact, I have. However, are YOU aware that not everyone has access to IMAP for their e-mail accounts? You do realize that there is a much larger world then the one you've created in your parent's basement? Ever heard of SMTP? You know, the protocol that the majority of the world still uses for sending/receiving e-mail?

I'm sure all your Windows apps worked just fine and all the-mail you had saved in Outlook opened just fine in Ubuntu. /s