What protocol is abbreviated as SMTP?

The abbreviation SMTP stands for Simple Mail Transfer Protocol. This is an Internet standard protocol used for sending and receiving email messages between servers. SMTP is fundamental in the process of transferring email messages across networks and is particularly essential when sending emails from client applications to email servers or between those servers.

The name reflects its purpose and functionality: "Simple" indicates that it is designed to be uncomplicated and easy to implement; "Mail" focuses on its use with email communications; and "Transfer Protocol" denotes that it governs the rules and procedures for transferring messages. Understanding this protocol is crucial for grasping how email systems work and how messages are routed via the internet.