Import Mail from Thunderbird into Outlook - Version 4.0 How to Import Mail from Thunderbird into Outlookwithout losing access to the EML files? Import Mailfrom Thunderbird into Outlook using EML to PSTConverter software which is developed by PCVAREsolution. PCVARE launched this tool to help all thoseusers who wish to Import Mail from Thunderbird intoOutlook. Even after the EML files are converted intoPST format, you do not lose access to them in EMLformat. Even after the conversion you can access yourEML files into PST. EML to PST Converter easilyconverts EML files from Thunderbird database to MSOutlook with all email details such as – To, Cc, Bcc,Time and date, attachments, formatting, subject, etc.The program also saves the converted EML files into newPST file.