Anatomy of an EmailXT message

An EmailXT message is actually a regular email message with encapsulated data. Typically, the raw email message has the following structure:

Regular RFC2822 headers
Extended, RFC2822-compliant EmailXT headers

Simple, plain text notice

MIME separator
EmailXT encrypted message data (base64)

MIME separator
EmailXT encrypted attached data (base64)

This format allows EmailXT messages to mix with the current email traffic, paving the way for a smooth transition between the current RFC2822/MIME protocol and the new EmailXT protocol.

To learn more about the EmailXT protocol, take the Quick Tour!