}
                    postcard.setJobname(systemProperties.getProperty("job.runtime.name", StringUtil.EMPTY));
                });
            } finally {
                SMailCallbackContext.clearPreparedMessageHookOnThread();
            }
        }
    }

    private String getValueFromMap(final Map<String, String> dataMap, final String key, final String defaultValue) {
        final String value = dataMap.get(key);