Whitelisting Blacklisted Server

"Matt" <[email protected]> Thu, 20 Jan 2005 13:01:33 -0600
Newsgroups gmane.mail.exim.exiscan.user
Message-ID <007501c4ff22$75a11b40$7801a8c0@matthew>
I use this to block spam on my server with Exiscan/Exim.

deny dnslists = relays.ordb.org : sbl-xbl.spamhaus.org
    message  = SPAM: rejected because $sender_host_address is in the 
blacklist at $dnslist_domain\n\ ($dnslist_text)

I need to whitelist a certain server thats listed in spamhaus.  How do I do 
that?

Matthew