Alias case MTA option

Alias and address case sensitivity option
Use of settings other than those recommended by Oracle is RESTRICTED.

The  option controls whether aliases (alias names) in the alias database or   alias file, or in Unified Configuration  alias options, are case sensitive. (It does not affect alias lookups in LDAP, that is,    lookups:  since the schema defines the ,  , and   LDAP attributes as case-insensitive, LDAP searches for these attributes are performed case-insensitively.) (Note that the MTA always preserves the case of the alias translation value, that is, the right hand side; the point of the   option is to control whether the alias on the left hand side is case sensitive for matching purposes.)  Note that even if aliases are case sensitive in general, postmaster aliases are always case insensitive. The default value is 0, meaning that aliases are not case sensitive. Bits 0 through 2 (values 0 through 7) control handling of alias file lookups (corresponding in Unified Configuration to alias options); higher bits control the handling of alias database lookups.

Bit 0 is the least significant bit.

See also:
 * Aliases
 * Alias file
 * Alias options
 * Alias database
 * alias_url0 MTA Option
 * Postmaster addresses
 * alias_database_url MTA Option
 * Alias and address MTA options