The task of MBOX to PST – Apple Mail to Outlook migration- can become confusing and complex for most of the users, as there is no direct way or method for such a migration. If you have been using Apple Mail for work for long, and in cases when you consider or need to move on a Windows machine, you would have to migrate from Apple Mail to Outlook due to the fact that you can’t use Apple Mail on a Windows machine. Apple Mail is the default email client on an Apple machine – Mac, MacBook, iPhone.