Direct LDAP domain lookup MTA options

A number of MTA options relate to domain lookups in LDAP.



 is a rewrite template to handle cases of LDAP errors during the MTA&#x27;s fundamental domain LDAP lookup while rewriting. 

 is available to support the STRONGLY DISCOURAGED use of so-called "vanity domains". 

 is important for domain aliasing, and in particular for implicit aliasing as in the case of supporting arbitrary subdomains of some upper domain name. 

 may have performance implications with some LDAP servers. Proper setting is also important in cases of site MTA configuration with reliance upon use of additional, site-specific LDAP attributes from domain entries. 

 Affecting interpretation of the results of domain lookups are,  , and. 

 Controlling caching and timeouts of domain lookups are,  , and. 

 Schema options include,   and. 

 Options to rename which LDAP attributes are used/recognized in domain entries are discussed under Direct LDAP attribute name MTA options; see especially the  MTA options. </li>

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See also:
 * domain_failure MTA Option
 * domain_match_cache_size MTA Option
 * domain_match_cache_timeout MTA Option
 * domain_match_url MTA Option
 * domain_uplevel MTA Option
 * ldap_attr_domain1_schema2 MTA Option
 * ldap_attr_domain2_schema2 MTA Option
 * ldap_attr_domain_search_filter MTA Option
 * ldap_basedn_filter_schema1 Option
 * ldap_basedn_filter_schema2 Option
 * ldap_default_domain MTA Option
 * ldap_domain_filter_schema1 Option
 * ldap_domain_filter_schema2 Option
 * ldap_domain_known_attributes Option
 * ldap_domain_root MTA Option
 * ldap_domain_timeout Option
 * ldap_host_alias_list Option
 * ldap_local_host MTA Option
 * Direct LDAP attribute name MTA options
 * MTA options
 * Direct LDAP MTA options