Configutil override MTA options

Historically, the MTA has had a number of options available to override (specifically for MTA purposes) various general Messaging Server settings formerly set via. In Unified Configuration, such former  options typically are now  base level options -- and MTA-specific overrides via MTA options typically still exist. (A convenient concordance of many such ,  , and MTA options may be found in Basic configuration settings relevant to alias LDAP lookups.)

See also:
 * ldap_default_domain MTA Option
 * ldap_domain_root MTA Option
 * ldap_host MTA Option
 * ldap_host_alias_list Option
 * ldap_local_host MTA Option
 * ldap_mail_aliases MTA Option
 * ldap_pab_host MTA Option
 * ldap_pab_max_connections MTA Option
 * ldap_pab_password MTA Option
 * ldap_pab_port MTA Option
 * ldap_pab_username MTA Option
 * ldap_password MTA Option
 * ldap_port MTA Option
 * ldap_schematag MTA Option
 * ldap_username MTA Option
 * ldap_user_root MTA Option
 * projectid Option
 * Base options
 * MTA options