If someone knows about “PST to Thunderbird without outlook”. I have a realistic solution of PST to Thunderbird without Outlook conversion problems that name eSoftTools PST to MBOX Converter Software. It's simple to complete only and takes a few more steps. A PST file's folders should be exported as separate MBOX files. A trial edition is also available for all of our users. In the demo version, you can convert up to 25 email objects per folder without paying anything.
Know more:- Import PST Files Into Thunderbird Without Outlook
Find your local. pst and. ost files.
Open yours. pst and. ost files.
Convert your emails to mbox or eml format. Select the mailbox root folder in the All folders pane, and click File > Export. Choose MBOX file format and click Ok.
Find your Thunderbird "Local Folders" Directory. Launch Thunderbird.
This May Help,
Peter