What is the purpose of the Simple Mail Transfer Protocol (SMTP)?

What is the purpose of the Simple Mail Transfer Protocol (SMTP)?

The purpose of the Simple Mail Transfer Protocol (SMTP) is to enable the transmission of electronic mail (email) messages between servers and clients over the internet. SMTP is responsible for the reliable and efficient delivery of email by establishing a connection between the sender's mail server and the recipient's mail server. It handles the transfer of the email message from the sender to the recipient, ensuring that it reaches the intended destination. SMTP also includes mechanisms for error detection and handling, as well as authentication and security features to protect the integrity and privacy of email communication. Overall, SMTP plays a crucial role in facilitating the exchange of email messages across different networks and systems.