[Exim] Better way to call virtual domains list

    Is there a better way to call virtual domains list in Exim's
configure file? I have a mysql table containing domains. Something like:

    foo = mysql; select * from domains_list;

    Why am I doing this:
       Becausa I want to put it on a routers checklist, like:
           domains: ! foo

    But when I do that I got errors, because of that I can't do remote
deliveries anymore.
    Any tips?