Dear Expert,
                    I am currently using unique overlay with uid and mail attributes which is working perfectly for me but now i want to make it unique across the directory like if i am using mailAlternateAddress attribute and try to add any value which is already defined in mail attribute should not be allowed.

Example -- mail: piyush@xxx.com is already there in ldap dit  then piyush@xxx.com should not be allowed in mailAlternateAddress attribute's value and vice versa.

Any help would be appreciated !!!

OpenLDAP version - 2.4.19
BDB version - 4.7.25

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Regards

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Piyush Joshi
System administrator
9415414376
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"Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it"