If you want to move your all emails from Microsoft Outlook to Thunderbird a free emails application. Process to transfer emails is really simple just follow the given steps below to transfer Outlook emails quickly.
Transfer emails form Microsoft Outlook to Thunderbird
Download Thunderbird, install it.
Run Thunderbird, click on “Tools” menu and select “Import” option.
Select “Mail” and click “Next” button.
Select the option either “Outlook” of Outlook Express the application you are using and hit “Next” button. Let the Thunderbird to import emails form Outlook and hit “Finish” button.
If you already have configured a mail account in Thunderbird then select all imported emails from “Inbox” folder under “Outlook Import” and move to the inbox of configured mail account’s inbox.
If you don’t have setup a mail account in Thunderbird, setup a new mail account in Thunderbird, click on “Tools” menu select “Account Settings” and find “Account Actions” drop down.