Alias special formats

In general, alias "special formats" supported for aliases stored in the alias file are also supported for aliases stored via an  group in Unified Configuration. But only some of the alias "special formats" supported for such aliases (those stored in the alias file) are also supported for aliases stored in LDAP.

In particular, for all forms of alias:



 an alias whose value begins with a leading colon has a special interpretation in regards to generation of notification messages; 

 subaddress support is available; 

 the  effect (perform  a catchall &#x2a; alias probe if no exact alias is found) is available (though use for LDAP aliases is strongly discouraged as for the case of LDAP aliases, use of the supported domain level attribute   is recommended instead). 



Furthermore, for aliases stored via an   group in Unified Configuration:



 the  MTA option feature is supported; 

 the  MTA option feature is supported; 



See the discussion of such special formats for aliases in the alias file for further details.

See also:
 * Alias file format
 * Aliases in LDAP
 * Aliases in Unified Configuration
 * Subaddresses in aliases
 * Notification messages
 * subaddressexact Option
 * mail_off MTA Option
 * post_off MTA Option
 * aliaswild Option
 * ldap_domain_attr_catchall_address MTA Option