# File lib/devise/mailers/helpers.rb, line 28
      def headers_for(action)
        headers = {
          :subject       => translate(devise_mapping, action),
          :from          => mailer_sender(devise_mapping),
          :to            => resource.email,
          :template_path => template_paths
        }

        if resource.respond_to?(:headers_for)
          headers.merge!(resource.headers_for(action))
        end

        unless headers.key?(:reply_to)
          headers[:reply_to] = headers[:from]
        end

        headers
      end