Do you want proper solution of how Thunderbird export sent mail to Outlook? If yes then try Thunderbird to Outlook Converter tool for batch export Thunderbird files to Outlook interface. The software properly migrate complete Thunderbird profile to Outlook inclusion of emails, contact and calendar. The software saves Thunderbird files with attachments in Outlook 2019, 2016, 2013, 2010, 2007 and 2003. Grab more details with the demo edition of Thunderbird to Outlook Converter. The demo edition export upto 20 Thunderbird files to Outlook free of cost.