A protocol, defined in STD 10, RFC 821, used to transfer electronic mail between computers. It is a server to server protocol, so other protocols are used to access the messages. See also: Electronic Mail, Post Office Protocol, RFC 822.
SIMPLE MAIL TRANSFER PROTOCOL
Meaning of SIMPLE MAIL TRANSFER PROTOCOL in English
Internetworking Terms English vocab. Английский словарь межсетевых терминов. 2012