Alice & Bob
    Identity CA
    MTA Identity
    MTA Transport

Protocol and API

The PeM API is based on REST and it uses HTTP via TLS for transport. There are two main entities that expose the required functionality: the certificate authority that issues the identity certificates and the mail transfer agent that transport the messages. This documentation contains only the endpoints that directly implement the PeM protocol. Not part of this documentation is for instance, the account set-up procedure because it can be different for other service providers.