russellgomez
Member
To import Outlook emails into Thunderbird, PST files first need to be converted into MBOX format because Thunderbird does not directly open PST files. Manual workarounds can be confusing, especially for large PST files or mailbox data with attachments and multiple folders. A simple solution is WholeClear PST to MBOX Converter, which exports Outlook PST emails to MBOX format in a few steps. It keeps email formatting, attachments, folder hierarchy, and important email fields such as To, From, Cc, Bcc, Subject, and Date safe during conversion. After conversion, the created MBOX file can be opened in Thunderbird and other supported email clients. The tool also gives a preview of PST folders before export, which helps in checking mailbox data before starting the final conversion. Free demo availability also helps in testing the software before purchase.