Alias_magic MTA option
Alias lookup control:
alias_magic 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' place controls the first thing looked up; the tens' place controls the second thing looked up; the hundreds' 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
alias_url0 LDAP lookup; a value of 7 means the
alias_url1 LDAP lookup; a value of 8 means the
alias_url2 LDAP lookup; a value of 9 means the
alias_url3 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
alias_url3 lookups (value 9) or alias database lookups (value 3). An alternate, sensible value for direct LDAP plus alias database lookups would be
alias_magic MTA option can be overriden for specific channels via the
aliasmagic channel option.
Caution: Support for this option is RESTRICTED. As the
alias_magic 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.