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Simple Mail Transfer Protocol (SMTP) is the de facto standard for e-mail transmissions across the internet. Formally SMTP is defined in RFC 821 (STD 10) as amended by RFC 1123 (STD 3) chapter 5. The protocol used today is also known as ESMTP.
SMTP is a relatively simple, text-based protocol, in which one or more recipients of a message are specified (and in most cases verified to exist) along with the message text and possibly other encoded objects. The message is then transferred to a remote server using a procedure of queries and responses between the client and server. Either an end-user's email client, a.k.a. MUA (Mail User Agent), or a relaying server's MTA (Mail Transport Agents) can act as an SMTP client. An email client knows the outgoing mail SMTP server from its configuration. A relaying server typically determines which SMTP server to connect to by looking up the MX (Mail eXchange) DNS record for each recipient's domain name (the part of the email address to the right of the at(@) sign). Conformant MTAs (not all) fall back to a simple A record in the case of no MX. Some current mail transfer agents will also use SRV records, a more general form of MX, though these are not widely adopted. (Relaying servers can also be configured to use a smart host.) The SMTP client initiates a TCP connection to server's port 25 (unless overridden by configuration). It is quite easy to test an SMTP server using the telnet program (see below). SMTP is a "push" protocol that does not allow one to "pull" messages from a remote server on demand. To do this a mail client must use POP3 or IMAP. Another SMTP server can trigger a delivery in SMTP using ETRN.
What else can I help you with?
What protocol is used between E-Mail servers?
SMTP -(Simple Mail Transfer Protocol) is what is used with the basic email. There is also and extended one (ESMTP)- (Extended Mail Transfer Protocol). Hope this helped.
What is the full form of 'SMTP'?
The full form of SMTP is Simple Mail Transfer Protocol (SMTP). The Simple Mail Transfer Protocol refers to the internet standard for the electronic mail transmission.
Full form of SMTP?
SMTP stands on simple mail transfer protocol
What protocol is used when receiving email?
SMTP (Simple Mail Transfer Protocol)
What does STMP stand for?
STMP stands for Simple Transportation Management Protocol.
What protocol is used to transmit email over the internet?
SMTP (Simple Mail Transfer Protocol) - sends mail only POP (Post Office Protocol) - retrieves mail and manages mailboxes IMAP (Internet Message Access Protocol) - retrieves mail and manages mailboxes
List application layer protocols?
1) SMTP- simple mail transfer protocol 2) GMTP- Group mail transfer protocol 3) FTP- File Transfer Protocol 4) TFTP- Trivial File Transfer Protocol 5) User Process
What do the acronyms SMTP stand for?
SMTP = Simple Mail Transfer Protocol
What protocol is used to transfer mail from one mail server to another?
SMTP (Simple Mail Transfer Protocol) is the protocol responsible for moving messages from one mail server to another over TCP/IP-based networks. Page(s): 501, Network+ Guide to Networks by Tamara Dean, Cengage Learning NOOKstudy . This material is protected by copyright.
Which network protocol is used to send emails?
SMT (Simple Mail Transfer), POP3, or even plain HTML
Which protocol provides email facility among different hosts?
Simple Mail Transfer Protocol (SMTP)
What is the port numbers of simple mail transfer protocol?
22 , 25
