How can I move Outlook PST emails to Thunderbird without losing attachments?

[Welhilton01]

To move Outlook PST emails to Thunderbird, the PST file first needs to be converted into MBOX format because Thunderbird supports MBOX-based mailbox data. A manual method is difficult because Outlook saves emails in PST format, and Thunderbird cannot directly open PST files. Exporting emails one by one may also break folder structure and take too much time. A safer option is to use WholeClear PST to MBOX Converter. It exports PST emails into MBOX format with attachments and keeps important email details like To, Cc, Bcc, From, Subject, and Sent date intact. The tool also preserves folder and subfolder structure, so mailbox data stays organized after conversion. It works without Outlook installation and supports PST files from Outlook 2019, 2016, 2013, 2010, 2007, and older versions. A free demo is also available for testing.