cid c78e035007173ec46cc7c7228052a9726d45babb8b730c45b4f10a5c00c2400e · original · open access · via wikipedia
Title: Simple Mail Transfer Protocol Authors: Venue: Wikipedia Year: unknown Canonical: wiki:simple-mail-transfer-protocol URL: https://en.wikipedia.org/wiki/Simple_Mail_Transfer_Protocol Collector: wikipedia OA: true ABSTRACT The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typically use SMTP only for sending messages to a mail server for relaying, and typically submit outgoing email to the mail server on port 465 or 587 per RFC 8314. For retrieving messages, IMAP and POP are widely used, but proprietary servers also often implement proprietary protocols, e.g., Exchange ActiveSync.