TWiki::User doesn't offer a way to get a list of users. That's a shame, because this is the only way I have of mapping from an email address back to a User object, which is needed in MailInContrib.

Propose adding this:

sub getListOfWikiNames {
    my $this = shift;
    $this->{usermappingmanager}->cacheTWikiUsersTopic();
    return keys $this->{W2U};
}

CC

see: Item1669