IANA defines a long list of character-sets which can be used for any internet communication, and to my surprise many of this list are not understood by Encode::Alias. My MailBox email processing automatically translates incoming message bodies into "Perl's internal representation", and this sometimes fails. Not too often, but sometimes. The IANA list can be found atThe attached script shows the missing aliases. Maybe you can add at least the simpelest definitions. Especially UNICODE-1-1-UTF-7, which simply is UTF7 and used in some email RFCs.