[Exim] dnslookup blocking for an addresslist

i'd like to fail dnslookups for any addresses in a given list

ideally, something like this:

addresslist myaddresses = lsearch;/path/to/file
dnslookup
    driver = dnslookup
    domains = ! +local_domains

 >    local_parts = ! +myaddresses

    transport = remote_smtp
    no_more

problem is, i can only figure out how to do it with local_parts -- is
the entire address even supported? can't find anything in the exim4
specification or book