pyzor times out

[Robert S <robert.spam.me.senseless@gmail.com>]

I have just installed pyzor:

# apt-get install pyzor

Then I ran the discover command:

robert@debian:~$ pyzor discover
downloading servers from
http://pyzor.sourceforge.net/cgi-bin/inform-servers-0-3-x
robert@debian:~$ cat .pyzor/servers
66.250.40.33:24441

Then I tested it:

robert@debian:~$ pyzor ping
66.250.40.33:24441      TimeoutError:

I got this reply from spamassassin --debug --lint:

debug: executable for pyzor was found at /usr/bin/pyzor
debug: Pyzor is available: /usr/bin/pyzor
debug: entering helper-app run mode
debug: setuid: helper proc 5580: ruid=1000 euid=1000
debug: Pyzor: got response: 66.250.40.33:24441  TimeoutError:
debug: leaving helper-app run mode
debug: Pyzor: couldn't grok response "66.250.40.33:24441       
TimeoutError: "

I have a hardware firewall.  I get the same error when I disable iptables. 
Is this a firewall problem or is the pyzor server down??