Why should I use a registered domain with authentication and CNAME as my email sender?
Because freemail domains (//helpdesk.e-goi.com/812703-Why-cant-I-use-Gmail-Yahoo-and-AOL-addresses-as-my-email-sender) (eg. those of your personal email accounts, such as Gmail, Outlook.com, Yahoo, etc.) weren't meant for email marketing! They're perfect for g...