I need to convert a large Outlook PST file while keeping the original folder hierarchy and mailbox data intact. The PST contains emails, attachments, contacts, calendars, and several subfolders, so I want to avoid any changes to the existing organization during conversion.

I recently came across SysInfo PST Converter, which supports converting and migrating Outlook PST data while preserving the folder structure and supported email properties. It also allows users to select specific folders and apply filters according to their requirements.