my $email_form = delete $form->{email_form};
my %field_names = (to => 'email');
$form->{ $field_names{$_} // $_ } = $email_form->{$_} for keys %{ $email_form };
my $email_form = delete $form->{email_form};
my %field_names = (to => 'email');
$form->{ $field_names{$_} // $_ } = $email_form->{$_} for keys %{ $email_form };