Added authentication_zero

app/mailers/user_mailer.rb

@@ -0,0 +1,15 @@
+class UserMailer < ApplicationMailer
+  def password_reset
+    @user = params[:user]
+    @signed_id = @user.generate_token_for(:password_reset)
+
+    mail to: @user.email, subject: "Reset your password"
+  end
+
+  def email_verification
+    @user = params[:user]
+    @signed_id = @user.generate_token_for(:email_verification)
+
+    mail to: @user.email, subject: "Verify your email"
+  end
+end