Ldap group rfc822 MTA option

Direct LDAP attribute name MTA options:  (LDAP attribute name list)
The  MTA option specifies the name of one or more group LDAP attributes, by default   and , whose value(s) will be RFC 822 email addresses of members of the group.

See also:
 * Defining membership of large lists
 * Direct LDAP attribute name MTA options