To convert MBOX to NSF file in Lotus Notes, you can try the ToolsBaer MBOX to NSF Converter Tool, which is the safest alternative. This tool can convert MBOX files to Lotus Notes NSF files. It converts MBOX files to Lotus Notes NSF in bulk, saving time and protecting data. This application is compatible with all Windows operating systems, allowing it to be installed on any version of Windows. Apple Mail, Eudora, SeaMonkey, Thunderbird, and several other email clients are compatible.