config/initializers/devise.rb

@@ -5,7 +5,7 @@ Devise.setup do |config|

                   # Configure the e-mail address which will be shown in Devise::Mailer,
              

                   # note that it will be overwritten if you use your own mailer class
              

                   # with default "from" parameter.
              

                -  config.mailer_sender = 'please-change-me-at-config-initializers-devise@example.com'
              

                +  config.mailer_sender = ENV['EMAIL_FROM_ADDRESS'].presence || 'you@example.com'
              

                 
              

                   # Configure the class responsible to send e-mails.
              

                   # config.mailer = 'Devise::Mailer'