Description

Simple Mail Transfer Protocol (SMTP) is a TCP/IP protocol used in sending and receiving email. It is the most widely used protocol for email transmission on the Internet. SMTP is used for transferring emails from one server to another, and from one user to another. It is also used for authentication, message routing, mail delivery, and to provide mail services. When sending an email, the user's email client will first connect to an SMTP server. The SMTP server will then authenticate the user, and then begin sending and receiving messages. The SMTP server will also handle message routing and delivery. It will determine which server the message should be delivered to based on the recipient's email address. Once a message is received, the server will then forward it to the recipient's email client. SMTP is a widely used protocol that is widely used in business and enterprise applications. It is used to send and receive emails, authenticate users, route messages, and deliver messages. The SMTP protocol is reliable, secure, and efficient, making it the most widely used protocol for email transmission on the Internet.

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