How is Registered E-mail different from Sender Authentication schemes?
To be clear, RPost Registered E-mail service is completely different from various e-mail authentication systems that have been proposed by a number of e-mail providers in an effort to produce an Internet standard for e-mail “sender authentication”. The goal with these sender authentication plans have been to increase trust for the e-mail recipient and reduce the threat of spoofing and phishing. DKIM is an example of a proposed solution. DKIM stores public keys in DNS and digitally signs e-mails on a domain basis. In general, these e-mail authentication systems provide value in allowing message recipients to view e-mail with a greater degree of trust and hold sending domains more accountable. By contrast, Registered E-mail services protect the sender by providing a verifiable record of the e-mail delivery and the content for the sender. Sender authentication systems do not offer such protection to the sender. In fact, the two systems complement each other rather than compete.
