What is SMTP authentication? SMTP Auth explained - IONOS
https://www.ionos.com/digitalguide/e-mail/technical-matters/smtp-auth/
WEBSep 27, 2023 · In most mail programs, SMTP authentication is configured automatically when a new account is created. If, for some reason, it isn’t working, you may have to do it manually. Below, you’ll find instructions on how to set up SMTP authentication for Gmail, Outlook and IONOS Mail.
DA: 31 PA: 22 MOZ Rank: 76