Ldap mail reverses MTA option

Direct LDAP usergroup lookup MTA options:  (comma-separated list of attribute names)
The  MTA option  specifies what attributes are used to build the filter referenced by the    LDAP substitution  sequence. (In iMS 5.2p2, the  MTA option,  used for address reversal, typically made use of the   substitution sequence.  However nowadays,   typically instead makes use of the   substitution sequence with attribute list therefore determined via the    MTA option.   So nowadays , and hence  , are of lesser interest.)

The default, if this option is not explicitly set, depends upon the schema tag. For a schema tag value of  or , the default for the   option is " ". For a schema tag value of, the default for this option is ".

See also the   and    MTA options.

Normally,  should be set to include, in addition to the canonical   attribute, all attributes set for , but should not include the attribute(s) set for. In particular, if   is changed to a non-default value, one would normally want to change   in a corresponding fashion.

See also:
 * Direct LDAP usergroup lookup MTA options
 * LDAP URL substitution sequences
 * ldap_schematag MTA Option
 * ldap_mail_aliases MTA Option
 * ldap_equivalence_addresses MTA Option
 * reverse_url MTA Option