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This article is to share with you about what protocols smtp refers to in computer networks. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Smtp is an e-mail protocol, which is a set of specifications for transferring mail from source address to destination address, through which it controls the way mail is transferred. A SMTP server is a mail sending server that follows the smtp protocol.

The commonly used e-mail protocols are SMTP, POP3, IMAP4, which belong to the TCP/IP protocol family. By default, connections are established through TCP ports 25,110and 143respectively.

SMTP introduction:

The full name of SMTP is "Simple Mail Transfer Protocol", or simple Mail transfer Protocol. It is a set of specifications for transferring messages from the source address to the destination address, through which it controls the way messages are transferred. The SMTP protocol, which belongs to the TCP/IP protocol family, helps each computer find its next destination when sending or transferring a letter. A SMTP server is a mail sending server that follows the SMTP protocol.

SMTP authentication, in short, requires that you must provide an account name and password before you can log on to the SMTP server, which makes it impossible for spammers to take advantage of it. The purpose of adding SMTP authentication is to protect users from spam.

SMTP is already the de facto standard for E-Mail transmission.

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