user mailer in rails 4

user_mailer_in_rails_4.rb

class UserMailer < ApplicationMailer
  default from: "[email protected]"

  def welcome(email, name, message)
    @email = email
    @name = name
    @message = message

    mail to: @email, subject: "Welcome to Example."
  end

  def sign_up(email, name, message)
    @email = email
    @name = name
    @message = message

    mail to: @email, subject: "Confirm your email!"
  end
end