SMTP Configuration on YAML file not showing under Automations

Hello, I am trying to setup a local SMTP server for email notifications (following the guide: SMTP - Home Assistant (home-assistant.io)).

I believe things check out fine, since there’s no syntax errors reported by the YAML . However, when I try to add a notification (thru the “call service” action), I can’t find my SMTP configuration. I would expect it to be listed as “notify.mySTMP”.

Is there something I am doing wrong?

Thanks!