Ldap auth attr sender MTA option

LDAP attributes returned upon authentication MTA options:  (LDAP attribute name)
(New in 8.0.) The  MTA option specifies the name of the LDAP attribute whose value should be returned (upon successful authentication) as the "authenticated sender". The default such LDAP attribute, if this option is not set, is the  attribute.

See also:
 * ldap_primary_address MTA Option
 * Direct LDAP attributes returned upon authentication MTA options
 * MTA options