The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message...

The Local Mail Transfer Protocol (LMTP) is an alternative to (Extended) Simple Mail Transfer Protocol for situations where the receiving side does not...

computer to another using the Simple Mail Transfer Protocol. In some contexts, the alternative names mail server, mail exchanger, or MX host are used...

application layer protocols, most often Hypertext Transfer Protocol (HTTP), although some legacy systems communicate over Simple Mail Transfer Protocol (SMTP),...

submission protocol, a profile of the Simple Mail Transfer Protocol (SMTP), to send the message content to the local mail submission agent (MSA), in this case...

transmission of electronic mail from the author's computer and between mail hosts in the Internet uses the Simple Mail Transfer Protocol (SMTP), defined in RFC 5321...

standard protocols, such as the Simple Mail Transfer Protocol (SMTP), the Post Office Protocol (POP), and the Internet Message Access чProtocol (IMAP)....

connected to local networks. The resulting protocol was NNTP, which resembled the Simple Mail Transfer Protocol (SMTP) but was tailored for exchanging newsgroup...

is a text-based protocol, incorporating many elements of the Hypertext Transfer Protocol (HTTP) and the Simple Mail Transfer Protocol (SMTP). A call established...

became the world's largest selling email system. The Simple Mail Transfer Protocol (SMTP) protocol was implemented on the ARPANET in 1983. LAN email systems...

Authentication, often abbreviated SMTP AUTH, is an extension of the Simple Mail Transfer Protocol (SMTP) whereby a client may log in using any authentication...

Message Block SMTP, Simple Mail Transfer Protocol SNTP, Simple Network Time Protocol SSH, Secure Shell SSMS, Secure SMS Messaging Protocol TCAP, Transaction...

Trivial File Transfer Protocol (TFTP) is a simple lockstep File Transfer Protocol which allows a client to get a file from or put a file onto a remote...

hostnames are allowed by some protocols, including HTTP, but disallowed by others, such as the Simple Mail Transfer Protocol (SMTP). Mockapetris, Paul. Domain...

This is a list of Simple Mail Transfer Protocol (SMTP) response status codes. Status codes are issued by a server in response to a client's request made...

Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP...

email to and from other servers. This is accomplished with the Simple Mail Transfer Protocol (SMTP). A standard SMTP service application listens on TCP port...

open mail relay is a Simple Mail Transfer Protocol (SMTP) server configured in such a way that it allows anyone on the Internet to send e-mail through...

facility that supports many kinds of mail-transfer and delivery methods, including the Simple Mail Transfer Protocol (SMTP) used for email transport over...

of email submission and retrieval. In the early 1980s, when Simple Mail Transfer Protocol (SMTP) was designed, it provided for no real verification of...

cooperates with a mail transfer agent (MTA) for delivery of the mail. It uses ESMTP, a variant of the Simple Mail Transfer Protocol (SMTP), as specified...

between different service providers, in the way that standard Simple Mail Transfer Protocol email currently does for store-and-forward email service, by...

Simple Mail Transfer Protocol RFC 7505 (2015), A "Null MX" No Service Resource Record for Domains That Accept No Mail Obsoletes: RFC 974 (1986), Mail...

are those used by Hyper Text Transfer Protocol (HTTP), File Transfer Protocol (FTP), and Simple Mail Transfer Protocol (SMTP); ports 80, 21, and 25 respectively...

unreliable protocols.[citation needed] Simple Mail Transfer Protocol (SMTP) is an example of a connection-oriented protocol in which, if a message is not delivered...

independent of Simple Mail Transfer Protocol (SMTP) routing aspects, in that it operates on the RFC 5322 message—the transported mail's header and body—not...

SSH File Transfer Protocol (also known as Secure File Transfer Protocol or SFTP) is a network protocol that provides file access, file transfer, and file...

Mail (DKIM) Sender Rewriting Scheme (SRS) Simple Mail Transfer Protocol (SMTP) Variable envelope return path (VERP) RFC 5321 - Simple Mail Transfer Protocol...

by implementing Simple Mail Transfer Protocol (SMTP) and possibly providing access to messages through Internet Message Access Protocol (IMAP), the Post...

Quick Mail Transport Protocol (QMTP), an e-mail transmission protocol that is designed to have better performance than Simple Mail Transfer Protocol (SMTP)...