openldap

Hi,

I had configured openldap 2.3.27-5 in RHEL 5 operating systems. my ldap is acting as a master slave. I have no problem with that, the changes what i make in master is getting replicated to slave. What i need to know is, I had to certain attributes to my openldap server.

for eg: when i add an attribute called ' mail ' for specifying mail address and in the ldif file and if i add that ldif file using 'ldapadd' command am getting,

ldap_add: Object class violation (65) additional info: attribute 'mail' not allowed

What i need to do for adding this attribute. tell me the correct objectclass for this attribute.