How to Get Thunderbird Email Messages Into Outlook

1. Open Thunder bird. Mail
2. Select the messages you want to export to Outlook. How many you can export will depend on the size of each message and its attachments as well as the capability of your Internet connection and provider.                                                                                                                      
3. After selecting the messages, right click and select "Forward as Attachments." A new mail message will open up with the email messages you selected as attachments. Enter the email address you are using with Outlook and press send.
4. Open the email containing the email message attachments and move this active window down a bit on your screen so you can see your main inbox area in Outlook.                                
5. Select All Attachments that contains ThunderBird mails as Attachments then Drag it into your Inbox or any Folder . Finally you got it.