I use firebase for authentication and have been quite happy with it, but if this provides better integration with mailing lists out of the box, that would be co

I use firebase for authentication and have been quite happy with it, but if this provides better integration with mailing lists out of the box, that would be compelling to me. Although I use firebase for authenticated users, I also have a mailing list sign up form with just an email field. I ended up creating my own confirmation email flow because I needed it to work for both people who created an account and people who just used the email form. It would've been nice not to have to do that.