MBOX stores the entire email folder in one file, presenting the contents as a chain of emails.To store and open mail from a different email system in Outlook, you have to export your messages to this format. There are important reasons for MBOX2PST conversion: It stores messages, as well as other Outlook items, together with their properties and directory structure. PST is an internal Microsoft Outlook database format.
The MBOX format is also used for transferring message databases, like in Google Takeout. To open MBOX messages in Microsoft Outlook or Exchange Server, you must import them into Outlook or convert them to Outlook data files. An MBOX file contains all messages of a mailbox or a separate folder. Those are, for example, Mozilla Thunderbird, Mac/Apple Mail and many others. The MBOX is a common format in which many mail programs store messages. Generates a report upon conversion accomplishment.Runs from Outlook or from an standalone application.