Electronic mail and Electronic message

Electronic mail noun - (computer science) a system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient's terminal when the recipient logs in.

Electronic message and electronic mail are semantically related. In some cases you can use "Electronic message" instead a noun phrase "Electronic mail".

Electronic mail and electronic message are semantically related. Sometimes you can replace phrase "Electronic mail" with "Electronic message", this phrases are similar.