How do I connect a SMTP with Firebase?

Question

Instead of using the built-in email system in Firebase, I wanted to use a SMTP called SMTP2Go but was wondering how to connect it and if need to buy my own email domain first or not? What requirements are needed to connect a SMTP to Firebase?

Answer 1

I assume you're trying to set up a custom SMTP server for sending (verification, password reset, email change) emails from Firebase Authentication. You can set a custom SMTP server in the Firebase Authentication console.

You don't need a custom domain for this. All you need to know is the SMTP host and port of SMTP2GO (something like mail.smtp2go.com and 587), and your account details from them (the username/password you use to log into smtp2go with).

The Sender address field is just what recipients see in the "From" field of the email, and also where any replies they send will be going. It can be whatever address you want to use to support your users.