Question: How Does SMTP Authentication Work?

How do I authenticate my SMTP server?

How to configure SMTP authenticationRight-click on the context menu of your e-mail account and click on “Settings”Navigate to “Outgoing server (SMTP)” select your mail server and click “Edit”Activate the option “Use username and password” and enter your e-mail address.Confirm the settings with “OK”.

What is SMTP authentication?

SMTP Authentication, often abbreviated SMTP AUTH, is an extension of the Simple Mail Transfer Protocol (SMTP) whereby a client may log in using any authentication mechanism supported by the server. It is mainly used by submission servers, where authentication is mandatory.

Why is SMTP authentication required?

Senders need to authenticate and prove that they have a valid account. If they don’t, the server will reject their request. All of this is possible with SMTP authentication, also known as SMTP AUTH.

How SMTP works step by step?

Simple Mail Transfer Protocol (SMTP) is based on end-to-end message delivery. An Simple Mail Transfer Protocol (SMTP) client contacts the destination host’s Simple Mail Transfer Protocol (SMTP) server on well-known port 25, to deliver the mail. The client then waits for the server to send a 220 READY FOR MAIL message.