The acronym SMTP stands for Simple Mail Transfer Protocol, the procedure behind the email flow on the internet.
SMTP is an abbreviation that stands for Simple Mail Transfer Protocol. This protocol allows applications to transmit email messages over the Internet. Basically, SMTP handles your outgoing mail. Your email application connects to your mail server via SMTP and sends the messages. Receiving emails, however, utilises two other different protocols – POP3 or IMAP.