I don't think so. However it may not be JBM issue. It should be that the microcontainer doesn't allow two mbeans of same name to be deployed.
The
<mbean ... name=emails>
Perhaps I should open a JIRA for this?
Sure, thanks.
Opened: https://jira.jboss.org/jira/browse/JBMESSAGING-1667.
Thanks,
Richard.