    ServerAlias {

    use esmith::HostsDB;
    use esmith::DomainsDB;
    my $hdb = esmith::HostsDB->open_ro();
    my %domains = map { $_->key => 1 } esmith::DomainsDB->open_ro->domains;
    my @hosts = grep {
            my $h = $_;
            ($h->prop('HostType') eq 'Self') && !$domains{$h->key}
        } $hdb->get_hosts_by_domain($virtualHost);
    $OUT = join " ", map { $_->key } @hosts;
}

