If you are looking for a way to convert your MBOX files into NSF format, you can try advanced MBOX to NSF Converter tool of SysInfo. It performs conversion of normal as well as corrupted MBOX files without causing any changes or data loss.
Advanced Features Of Sysinfo MBOX to NSFConverter
1. This tool supports MBOX files of different email clients, such as: Thunderbird, Entourage, Spicebird, Pocomail, AppleMail, Netscape,etc.
2. allowed to see the preview of recovered data in the preview pane before saving them.
3. This tool can be easily handled by non-technical people due to its user-friendly Interface.
4. It creates a new NSF file at the user-defined location or saves the MBOX file's data into the existing NSF file.
5. It provides a free demo version to evaluate the tool before purchasing its full version.