Bamboo issue - no emails sent error

Questions & Help Questions
,
2

You are missing this part:

defmodule MyApp.SomeControllerPerhaps do
  def send_welcome_email do
    Email.welcome_email()   # Create your email
    |> Mailer.deliver_now!() # Send your email
  end
end

Kindly check the official documentation here: GitHub - beam-community/bamboo at master · GitHub

You have to use your Application Mailer module to deliver the emails.

In your case, try to import this on top of the Rewardapp.Email:

import Rewardapp.Mailer
....
...
# in your email fn:
def rewardEmail(user) do
    base_email()
    |> to(user)
    |> subject("You were granted points!")
    |> text_body("You were granted some points! To check, log into your account!")
    |> Mailer.deliver_now!() # to deliver immediately
  end