ActionMailbox::Relayer::Result < Struct.new(:status_code, :message)

# File actionmailbox/lib/action_mailbox/relayer.rb, line 14
      def failure?
        transient_failure? || permanent_failure?
      end

# File actionmailbox/lib/action_mailbox/relayer.rb, line 22
      def permanent_failure?
        status_code.start_with?("5.")
      end

# File actionmailbox/lib/action_mailbox/relayer.rb, line 10
      def success?
        !failure?
      end

# File actionmailbox/lib/action_mailbox/relayer.rb, line 18
      def transient_failure?
        status_code.start_with?("4.")
      end