@@ -0,0 +1,14 @@
+MAIL_SETTINGS = {
+  :address        => 'smtp.sendgrid.net',
+  :port           => '587',
+  :authentication => :plain,
+  :user_name      => ENV['SENDGRID_USERNAME'],
+  :password       => ENV['SENDGRID_PASSWORD'],
+  :domain         => 'heroku.com'
+}
+
+if ENV["EMAIL_RECIPIENTS"]
+  Mail.register_interceptor(
+    RecipientInterceptor.new(ENV.fetch("EMAIL_RECIPIENTS"))
+  )
+end
Put a comma after the last parameter of a multiline method call.