I have a folder containing several MBOX files exported from different email clients (like Thunderbird and Apple Mail). Now, I need to migrate all these emails to Outlook, which requires them to be in PST format. Is there an efficient way to batch convert multiple MBOX files into a single or multiple PST files without losing email data, attachments, and folder structure? I tried manual methods like importing into Thunderbird and then exporting, but it is very time-consuming and does not work well for bulk files. If anyone has used a reliable tool, please share.