props.setProperty(FessEnv.MAIL_RETURN_PATH, "no-reply+bounce@example.co.jp");
                return props;
            }
        };

        assertEquals("smtp-relay.example.com:465", specialMailEnv.getMailSmtpServerMainHostAndPort());
        assertEquals("[テスト環境]", specialMailEnv.getMailSubjectTestPrefix());
        assertEquals("no-reply+bounce@example.co.jp", specialMailEnv.getMailReturnPath());
    }

        }

        @Override
        public String getMailFromName() {
            return "Fess System";
        }

        @Override
        public String getMailReturnPath() {
            return "bounce@example.com";
        }
    }