Thanks for your answer. In my group I have to users but when I use this command : $ ldapsearch -Y GSSAPI -b 'cn=users,cn=accounts,dc=example,dc=com' '(memberOf=cn=mygroup,cn=groups,cn=accounts,dc=example,dc=com)' mail the result is: # search result search: 2 result: 0 Success How can I check my memberOf plugin ? <div class="gmail_quote">2012/9/18 Rob Crittenden <<a href="mailto:rcritten@redhat.com" target="_blank">rcritten@redhat.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">James James wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi everybody, can somebody help me with the memberof plugin ? Is there a way to add the memberof attribute like it was in 389-ds ? For my mailing list program, I want to have the email of the emails of all the person belongings to a group. Is there a filter to do that ? </blockquote> </div></div> To find all e-mail address of users in group "mygroup" use: $ ldapsearch -Y GSSAPI -b 'cn=users,cn=accounts,dc=example,dc=com' '(memberOf=cn=mygroup,cn=groups,cn=accounts,dc=example,dc=com)' mail This will include nested users who are in groups that are members of mygroup. rob </blockquote></div>