SMTP (Simple Mail Transfer Protocol)

SMTP, or Simple Mail Transfer Protocol, is a set of rules used for sending and receiving emails over the internet. It helps computers communicate with each other, ensuring that your email reaches the intended recipient. When you send an email, SMTP transfers your message from your email server to the recipient's server. Once it reaches the recipient’s server, other protocols like POP or IMAP help deliver it to their email inbox. Essentially, SMTP acts like the postal service for digital communication, managing how emails are sent and routed across various networks.