Yes, the safest way is by using the CloudMigration MBOX Converter. The software is built to ensure secure migration of MBOX files to Hotmail without losing attachments, inline images, or metadata. What makes it stand out is its duplicate email remover, which helps keep your Hotmail inbox clutter-free. It also offers support for exporting into multiple file formats like PST, EML, MSG, and PDF. With its easy interface and advanced features, users can rely on it for precise, error-free migration every time.