Excellent. I knew it was a good idea :-) For M2 or 3 I want to stabilize/parameterize our testkit a bit more.
thanks. just realized that we may want to use DomainGroup's for other purposes that just testing 'rcpt to:<...>' during smtp, so i made the inclusion of address domain literals configurable in the mbean and in jboss-service.xml. thus, we can still use DomainGroupMBean's in cases where implictly including domains like '[127.0.0.1]' is not needed.