> “email” is interchangeably used to mean either the protocol, an address or a message "email" isn't a protocol. SMTP is though, and referring to RFC 5321 ("a

> “email” is interchangeably used to mean either the protocol, an address or a message "email" isn't a protocol. SMTP is though, and referring to RFC 5321 ("a specification of the basic protocol for Internet electronic mail transport"), section 2.3.11 [1], we see that: "As used in this specification, an "address" is a character string that identifies a user to whom mail will be sent or a location into which mail will be deposited." https://tools.ietf.org/html/rfc5321#section-2.3.11 https://tools.ietf.org/html/rfc5321#section-2.3.11