Usually, MBOX file formats are used for related file formats which store the collections of electronic mail messages of an entire folder in a single database file.
But sometimes MBOX files got corrupted and it might become a big issue in your work, there might be some factors that cause MBOX file corruption, damage, and showing the invalid format
But, to avoid the consequences of the issues you might try MBOX to NSF Converter tool to get successful conversion without any data to lose or change in data and you can do bulk conversions as well.
It can export MBOX files of any emailing client to Lotus Notes format.
