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I management accounts with postfix 2.5+openLDAP. and I manage the mailing list by LDAP too.

but this error occured in /var/log/mail.log warning: dict_ldap_open: /etc/postfix/ldapml: Fixed query_filter (&(objectClass=organizationalPerson))

In particular does not have any problem, but I want to delete this log. How to remove this errors?

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You have a bad ldap filter rule. This query will always return the same answer.

We can help if you post your rules here. (/etc/postfix/ldapml) And it can also help if you post the output of

postconf -n


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