Or clauses MTA option

Mailing list and group MTA options:  (0 or 1)
The  MTA option sets the default for whether multiple mailing list access control settings (e.g.,  ,  ,  etc., or &#x5b;AUTH_LIST&#x5d;, &#x5b;CANT_LIST&#x5d;, etc. in legacy configuration)  are ANDed (the default,  ) or ORed. See Mailing list multiple access control interpretation for additional discussion.

This general MTA option setting can be overridden on a per list or group basis via the alias options   or   (in legacy configuration, the mailing list named parameters  &#x5b;OR&#x5d; or &#x5b;AND&#x5d;), or in direct LDAP mode via use of an " " or " " value as one  of the values of the LDAP attribute named by the    MTA option  (by default,  ).

See also:
 * Mailing list and group MTA options
 * ldap_auth_policy MTA Option
 * alias_or Option
 * alias_and Option
 * alias_auth_list Option
 * alias_cant_list Option
 * Alias file named parameters
 * Mailing list multiple access control interpretation