Domain file path is optional .
@@ -48,7 +48,6 @@ public class Config extends ConfigItem {
private List<@ValidBase64 String> alwaysSendTo;
@ValidPath(checkCanCreate = true)
- @NotNull
@XmlElement(required = true, type = String.class)
@XmlJavaTypeAdapter(PathAdapter.class)
private Path unixSocketFile;
