I'm not sure your RegEx is correct. I suggest you do what others suggested, and change your 'what' to be what you want, and verify your regex.
Sellers
On Apr 15, 2009, at 7:50 AM, Wolf-Agathon Schaly wrote:
access to dn.regex="(.*,)cn=OracleContext,ou=services,o=privat,c=de" by group="cn=dba,ou=groups,o=privat,c=de" write by anonymous read