History of the Certified Email™ Service and Trademark

The Certified Email™ service uses the Digital Seal® mark for content association and authentication. This technology underlying the Certified Email™ service has been used commercially by RPost customers for several years and is patented.

The technology behind the Digital Seal® mark is special email authentication technology that adds an email authentication file that can be attached to a message. The technology uses cryptographic means to associate and authenticate message content and other related transmission data. This email authentication technology has been used commercially by RPost customers for several years and is patented.

In 2004, Goodmail Inc. first coined a name for its service that provided the recipient a means to authenticate the sender of email. Goodmail trademarked this service as the Certified Email™ service. In 2005, Goodmail applied to register this Certified Email™ trademark with the United States Patent and Trademark office. In early 2011, RPost acquired the Goodmail trademark, Certified Email™, and all associated goodwill, and applied this trademark to RPost's services that provide the recipient of an email with a means to authenticate the message origin and/or author, content including attachments, and uniform time of transmission.

One important benefit of the RPost Certified Email™ service over the Goodmail implementation of the service is that the RPost services do not require the recipient or the recipient email providers to employ any special technology or server configurations.