process

# File actionmailer/lib/action_mailer/base.rb, line 599
    def process(method_name, *args) #:nodoc:
      payload = {
        mailer: self.class.name,
        action: method_name,
        args: args
      }

      ActiveSupport::Notifications.instrument("process.action_mailer", payload) do
        super
        @_message = NullMail.new unless @_mail_was_called
      end
    end