What is Auth Login Portal?
Auth Login page can be accessed at https://auth0.com/. Auth.com offers two ways to implement the authentication of your application. The two ways are Universal Login and Embedded Login. But, for the most cases, we recommend you to use Universal Login. This login method is easier and safer to do.
What is Universal Login?
Universal Login is the implementation of login flow. It is the key feature of the authorization server. You cam be redirected from the application hosted by Auth Login portal. This way, the user will be authenticated to the application. It can increase the security and protect the pishing and other attacks.
What are the Kinds of Universal Login?
- Classic Universal Login: The hosted pages are built in with Javascript widgets such as CSS and HTML.
- New Universal Login: Auth-hosted pages. It does nit use Javascript widgets.
AUTH Command and its Mechanisms (PLAIN, LOGIN, CRAM-MD5 …
The AUTH Command The AUTH command is an ESMTP command (SMTP service extension) that is used to authenticate the client to the server. The AUTH command sends the clients username and password to the e-mail server. AUTH can be combined with some other keywords as PLAIN, LOGIN, CRAM-MD5 and DIGEST-MD5 (e.g. AUTH LOGIN) to choose an authentication mechanism.
https://www.samlogic.net/articles/smtp-commands-reference-auth.htm