Ldap filter reference MTA option

Direct LDAP attribute name MTA options:  (LDAP attribute name)
The  MTA option specifies the name of a user or group LDAP attribute to be used to locate the "parent" of  ("head-of-household" for) the current user or group entry. There is no default; (no pre-defined LDAP attribute for this purpose). Note that when adding an attribute for this purpose, this typically should not be an attribute modifiable by the user himself; instead, it should typically instead be modifiable by the "parent" ("head-of-household") user.

If parental controls are enabled for a user (see the   MTA option), then the attribute named by this    MTA option specifies the DN of the entry that contains the actual parent/head of household Sieve filter (typically, that is, the DN of the head of household user). (The LDAP attribute within that head of household user entry containing the Sieve filter is specified by the  MTA option,  which defaults to  . The lookup requests both the Sieve filter, contained in the attribute named by the   MTA option, and the owner, contained in the  LDAP attribute named by the    MTA option,  which defaults to  .)

See also:
 * Direct LDAP attribute name MTA options
 * Direct LDAP usergroup lookup MTA options
 * Head of household Sieve filters
 * ldap_parental_controls MTA Option
 * ldap_hoh_filter MTA Option
 * ldap_hoh_owner MTA Option
 * Access controls on LDAP attributes