SMTP Authentication is a protocol extension of the Simple Mail Transfer Protocol (SMTP) that ensures only authorized users can send emails through an SMTP server, reducing the risk of spam and unauthorized access. It typically requires the user to provide a username and password before sending an email, enhancing security by verifying the sender's identity.

SMTP Authentication

Simple Mail Transfer Protocol (SMTP) is the standard protocol used for sending emails across networks, ensuring reliable and efficient email delivery. It operates over the Internet's TCP/IP protocol suite and is primarily responsible for the transmission of messages between mail servers.

Simple Mail Transfer Protocol

protocol extension

authorized users

Sending emails

An SMTP Server is a critical component in the email delivery process, responsible for sending, receiving, and relaying outgoing mail between email clients and servers. It operates using the Simple Mail Transfer Protocol (SMTP) to ensure messages are correctly routed and delivered to the recipient's email server.

SMTP server

risk of spam

Unauthorized access refers to gaining entry into a computer system, network, or data without permission, often leading to data breaches or other security incidents. It is a critical security concern for organizations, necessitating robust authentication and monitoring measures to prevent and detect intrusions.

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