Alias_case MTA option
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Alias and address case sensitivity option (alias_case)
The alias_case option controls whether aliases in the alias database are case sensitive. (Note that the MTA always preserves the case of the alias translation value, that is, the right hand side; the point of the alias_case 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.
Caution: Support for this option is RESTRICTED. As support for this option may not be complete or tested, and in any case is relevant only for special purpose use of the alias database, setting this option to a non-default value should only be done upon the recommendation of Sun engineering.
See also: MTA options, Option value syntax, Getting option changes to take effect, MTA options, listed alphabetically, MTA options, listed by functional groups, Alias and address options, Database options, Aliases, Alias database, Postmaster aliases.

