Howtogeek is showing how to import your emails from Outlook to Apple Mail using Thunderbird

One issue to consider when switching from Windows to OS X is email, as Windows users are often rooted in Outlook. Today, we show how to move from Outlook to Apples Mail.app using Mozillas Thunderbird as a bridge to cross the gap.

In Windows
To begin you will need to install Mozillas Thunderbird on your Windows machine. Once it is installed you do not need to add an account to import anything. To begin the Import click on Tools > Import

In this case we have only used Outlook for mail so we will choose the Mail option, If you also have other material that you would like to import, it may be faster to import each section separately. Once you have chosen your material, click Next.

  Import Email From Outlook to Apple Mail.app Using Thunderbird