Yes, it is absolutely possible to upload Outlook MSG files to Yahoo Mail, but not through a direct manual method. MSG files, generated by Microsoft Outlook, are not natively supported by Yahoo Mail. To perform this migration, you need a professional and reliable tool Aryson MSG Converter. This advanced utility is designed to convert MSG files into various formats and directly import them into popular email clients, including Yahoo Mail. This software offers fast conversion of MSG emails to different File Formats. Also, it is equipped with smart features like duplicate removal, batch processing, and import to multiple Email Clients. Thus, it ensures effortless handling of MSG files with unmatched precision and efficiency on Windows systems.