Domain
					+------------------+
					| dc=example,dc=com|
					+------------------+
						|
					+------------+
					|            |
				   PosixGroup
				+-------------+
				|cn=person    |
				+-------------+
					|
			  +-------------------------------------------------+
                          |                                                 |  
                     inetOrgPerson                                     inetOrgPerson
                  +--------------------+                       +------------------------------+
                  |cn=test@example.com |                       |cn=otherperson@diffdomain.com |
                  |uid=test@example.com|                       |uid=otherperson@diffdomain.com|
                  +--------------------+                       +------------------------------+
                           |                                                 |
           +---------------+----------------+                   +---------------------------+
           |               |                |                   |
     ipService         ipService        ipService            ipService
   +-------------+    +----------+    +-----------+        +------------+
   |cn=mail      |    |cn=admin  |    |cn=webapp  |        |cn=mail     |
   +-------------+    +----------+    +-----------+        +------------+