[Exim] Testing rbl_domains

Hello:

Can anybody supply an IP known to be in the blackholes.mail-abuse.org list?
I've setup exim with the following:

rbl_domains = blackholes.mail-abuse.org/reject
rbl_reject_recipients = true


But spam still gets through and the reject logs are empty (although none
that I've been able to find in the list). I don't know if my spam filtering
is working. I need an IP to test using exim -bh.

Thanks

Eric Bruntjen
ericb@???