initial commit

app/mailers/user_mailer.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class UserMailer < ApplicationMailer
+  def invitation_email(user)
+    @user = user
+    @token = @user.send(:set_reset_password_token)
+
+    mail(to: @user.friendly_name,
+         subject: 'You have been invited to Docuseal')
+  end
+end