LDAP bind and connect MTA options

MTA options exist to control the basics of its LDAP bind operations and LDAP connections: the credentials used to bind, the timeout on connection attempts, the maximum number of simultaneous connections, etc.  Besides these MTA options controlling the MTA&#x27;s "normal" LDAP connections (those LDAP connections used for lookups in the domain and user/group portions of the DIT, as well as general LDAP URL lookups sites have explicitly configured in MTA rewrite rules or mapping tables), the MTA is also capable of performing PAB (Personal Addressbook) specific LDAP lookups (see the  LDAP PAB MTA options) as well as LDAP connections to some alternate, "external" LDAP directory (see the LDAP external directory lookup MTA options).

See also:
 * ldap_host MTA Option
 * ldap_max_connections MTA Option
 * ldap_password MTA Option
 * ldap_port MTA Option
 * ldap_timeout MTA Option
 * ldap_use_async MTA Option
 * ldap_username MTA Option
 * max_urls MTA Option
 * MTA URL types
 * MTA options
 * Direct LDAP MTA options
 * LDAP PAB MTA options
 * LDAP external directory lookup MTA options