That evening, Arjun returned to Reddit. He found the original thread for and posted his own reply:
He pointed it to his massive .mbox file. The software chugged for 20 minutes, a green progress bar crawling like a glacier. Then, a preview popped up. Every email. Every folder. Even the ancient Sent folder from his Nokia E71 was intact. mbox to pst converter reddit
The Great Migration of '23
But the second thread was a goldmine. A user named had posted a detailed saga titled: "I converted 90GB of mbox to PST without losing a single header. Here is how." That evening, Arjun returned to Reddit
Arjun followed the advice to the letter. He turned on Windows Sandbox—a clean, isolated Windows environment. He downloaded the trial of SysTools Mbox to PST Converter inside the sandbox. Then, a preview popped up
He paid the $49 via PayPal, holding his breath. The full version exported the entire 45GB archive into a pristine .pst file in under two hours.
The comment section was a battlefield. One faction swore by a Python script called mb2pst . Another faction argued that using free converters was "digital suicide" due to malware. A third faction, the pragmatists, all agreed on the same name: .