For our web app we our currently using Firebase's free plan, and need to send emails on various events/triggers. The problem is, I thought Mailgun would work perfectly for this task along with their cloud functions but it looks like it's possible to use their API only with Firebase's paid plan which we don't intend to use right now when our app is still under development. So, we're kind of stuck without the knowledge on how to implement email functionality with Firebase with minimum amount of money (we can always pay or pay more when we are a little clear on whether our app will make any profit at all)... Can anyone help me.with any way of doing it in an (almost) free way for now - which we can upgrade any time later on?
Thanks! Piyush Soni