They should work on the Thunderbird address book. This part of the program is totally broken: -only 2 eail addresses per person -if you have activated automatic

They should work on the Thunderbird address book. This part of the program is totally broken: -only 2 eail addresses per person -if you have activated automatic adding of an email address to your address book when sending a mail it is not case-insensitive. You get multiple entries: My.Name@Example.com, my.name@example.com, My.Name@example.com