[exim] Recipient whitelisting from dnslist check

Hi!

I've seen how to whitelist a domain (domainlist) or a host (hostlist)
from RBL checking but I don't know if it can be done for a few
recipients (ie. localpart@???), and how would be done (note it
wouldn't be a general whitelist, only for bypassing RBL checks).

Thanks in advance :)

Regards,
Alvaro.