Simple Mail Transfer Protocol

(redirected from Simple mail transport protocol)

Simple Mail Transfer Protocol

[¦sim·pəl ′māl ‚tranz·fər ‚prōd·ə‚kȯl]
(computer science)
An Internet standard for sending e-mail messages. Abbreviated SMTP.

Simple Mail Transfer Protocol

(messaging)
(SMTP) A protocol defined in STD 10, RFC 821, used to transfer electronic mail between computers, usually over Ethernet. It is a server to server protocol, so other protocols are used to access the messages. The SMTP dialog usually happens in the background under the control of the message transfer agent, e.g. sendmail but it is possible to interact with an SMTP server using telnet to connect to the normal SMTP port, 25. E.g.

telnet mhs-relay.ac.uk 25

You should normally start by identifying the local host:

HELO wombat.doc.ic.ac.uk

You can then issue commands to verify an address or expand an alias:

VRFY fred@doc.ic.ac.uk VRFY postmaster

or expand a mailing list:

EXPN c-help

You can even send a message:

MAIL From:<fred@doc.ic.ac.uk> RCPT To:<fred@mailway.doc.ic.ac.uk> DATA What is the point? . QUIT

This is useful if you want to find out exactly what is happening to your message at a certain point.

See also Post Office Protocol, RFC 822, sendmail.
References in periodicals archive ?
Standards, such as simple mail transport protocol (SMTP), post office protocol (POP) and Internet message access protocol (IMAP), were created and incorporated into the Internet, as well as integrated into other messaging platforms based on client-server technology.
When implemented, AS1 enables users to connect, deliver and reply to data securely and reliably over Simple Mail Transport Protocol (SMTP) or email.
Users can conduct transactions from any application that has access to a TCP/IP network or a connection supporting File Transfer Protocol or the Simple Mail Transport Protocol.
We describe basic routing, the Domain Name System (DNS) and the Simple Mail Transport Protocol (SMTP), Post Office Protocol (POP) and Internet Message Access Protocol (IMAP) protocols which are the basis of the email system.
The workgroup messaging product will be based around Ultimail, which now supports TCP/IP and the Simple Mail Transport Protocol.
We describe basic routing, the Domain Name System (DNS) and the Simple Mail Transport Protocol (SMTP, Post Office Protocol (POP) and Internet Message Access Protocol (IMAP) protocols which are the basis of the email system.
AS1 is a specification standard that allows applications to communicate Electronic Data Interchange (EDI) data over the Internet using Simple Mail Transport Protocol (SMTP) or email.
Simple Mail Transport Protocol Authentication (SMTP) - This
Progress IPQoS collects statistics on well-known TCP/IP ports such as simple mail transport protocol (SMTP) for sending e-mail and POP3 services for receiving e-mail, as well as on application servers for groupware, e-commerce and the Web.
Complementing the SNMP functionality, all Saguaro libraries include standard e-mail notification services using the standard Simple Mail Transport Protocol (SMTP), enabling the library to notify systems administrators via e-mail of any exceptional conditions that may impact performance.
The Banyan Intranet Messaging Suite product provides support for leading open messaging standards such as the Internet Message Access Protocol (IMAP) for client/server messaging, the Simple Mail Transport Protocol (SMTP - provided by Incognito's iSMTP MTA for StreetTalk for Windows NT product), and the Messaging Application Program Interface (MAPI) for 32-bit Microsoft Windows platforms.
NEXOR has taken MIXER one step further by incorporating NOTARY, an extension to the Internet Simple Mail Transport Protocol (SMTP) that functions as a delivery notification mechanism.

Full browser ?