node.js - How send secure email javascript and firebase?

Question

There are tons of tutorial that you how can send email free and non-secure way. You have to enable gmail less secure. Lot of implementation your password is readable in the sourcecode.

My main question how implement this secure way in frontend(javascript) and backend(firebase)?

so two important thing:

1. No pay to a service monthly
2. No less secure

I think it is possible implement with javascript, node, nodemailer, dotenv and firebase functions.

Is it possible? and how? Do you give me a link there is implemented?

Thank you

Answer 1

等待大神答复