Ldap default attr MTA option

Direct LDAP usergroup lookup MTA options:  (attribute name)
Some sites upgrading from previous software may be accustomed to using LDAP query URLs that do not specify an attribute to return (which for LDAP query URLs literally means to return all attributes) in places where all that they really wanted was the return of a single attribute. If the MTA sees an LDAP URL that does not specify which attribute(s) to return used in a place where the MTA knows that only a single attribute is desired, then the MTA will normally change the LDAP URL by forcibly inserting  in the (omitted) attributes field of the LDAP URL.

The  MTA option  may be used to tell the MTA some other attribute to forcibly insert into the LDAP query URLs (some other attribute to request) in such cases where the attributes field was incorrectly omitted from the original LDAP query URL.

See also:
 * Direct LDAP usergroup lookup MTA options