Alias magic MTA option

Alias lookup control:   (integer)
The  MTA option controls the ordering of alias lookups. It takes a decimal-encoded integer argument, where each decimal digit represents a type of alias lookup, and the ordering of the digits controls the ordering of the lookups. The ones&#x27; place controls the first thing looked up; the tens&#x27; place controls the second thing looked up; the hundreds&#x27; place controls the third thing looked up; etc. A value of 1 means personal aliases; a value of 2 means logical aliases; a value of 3 means the alias database; a value of 4 means the alias file; a value of 6 means the   LDAP lookup; a value of 7 means the   LDAP lookup; a value of 8 means the   LDAP lookup; a value of 9 means the   LDAP lookup.

Prior to 7.0U3 the default value for this option was 98764321; in 7.0U3 and later the default has been changed to the recommended operating value of 8764 for direct LDAP mode. Note that that does not enable  lookups (value 9) or alias database lookups (value 3). An alternate, sensible value for direct LDAP plus alias database lookups would be alias_magic=987643 The  MTA option can be overriden for specific channels via the   channel option.

Caution: Support for this option is RESTRICTED. As the  option affects MTA operation at a very fundamental level, in particular its fundamental means of doing alias lookups, which can have wide-ranging, both obvious and subtle effects, setting this option to other than a Oracle-engineering-recommended value is not supported.

See also:
 * Alias and address MTA options
 * Database MTA options
 * Direct LDAP usergroup lookup MTA options
 * Alias file
 * Alias database
 * alias_url0 MTA Option
 * alias_url1 MTA Option
 * alias_url2 MTA Option
 * alias_url3 MTA Option
 * aliasmagic Option
 * Overview of Direct LDAP configuration