Apple Mail, Gmail, Webmail, Thunderbird, Opera Mail, and many other email clients support the MBOX file format, and users can install and configure any portable email client to read MBOX data. MailDaddy Free MBOX Viewer is an easy process to load and open MBOX files instantly. Any user can use this application and easily read MBOX files in one go. The software provides a clear preview of the email and keeps all attachments during display. The software has several other options that users can unlock after upgrading the software.