Ldap auth url MTA option

Direct LDAP attribute name MTA options:  (LDAP attribute name)
The  MTA option names the group LDAP attribute, by default , whose value specifies via an MTA URL a list of  (envelope From) addresses  allowed to post to the group or list. Note that depending on the setting of the  MTA option, certain substitution sequences may be used in the URL.

As of MS 6.3, when a URL is expanded to get back a list of those sending addresses allowed to post, the MTA will request (for local users) aliases as well as canonical addresses; this means that lists where only members are allowed to post do allow local members to post using their defined aliases.

Note that the,  , and   MTA options  select which form of a message&#x27;s envelope From address is compared in making the access determination.

See also:
 * MTA URL types
 * use_auth_return MTA Option
 * use_canonical_return MTA Option
 * use_orig_return MTA Option
 * process_substitutions MTA Option
 * ldap_use_async MTA Option
 * Mailing list multiple access control interpretation
 * Direct LDAP attribute name MTA options