POP3 and SMTP – what are the differences?

Both POP3 and SMTP are protocols for handling your email over the Internet. The difference between them is that the SMTP protocol handles sending new emails, while POP3 takes care of receiving emails. For more information on that matter, take a look at our articles What is SMTP and What is POP3.

What is SMTP?

SMTP stands for Simple Mail Transfer Protocol and it handles your outgoing mail. This protocol allows applications to transmit email messages over the Internet. Your email client connects to your mail server via SMTP and sends the messages. To prevent spam from being sent via our mail servers, we require SMTP authentication. This means that you have …

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