recipient_delimiter

[Amigo remailer admin]

I don't understand this message I keep getting from cron:

/etc/cron.daily/mixmaster:
/usr/bin/mixmaster-update: Get failed for 
http://www.remailer.org.uk/stats/rlist2.txt (500 Can't connect 
to www.remailer.org.uk:80 (Bad hostname
'www.remailer.org.uk'))
Exiting eval via next at /usr/bin/mixmaster-update line 384.

If I run mixmaster-update from the command line, I don't get any 
errors at all.

The domain is valid and works.

The web server giving out the statistics actually runs on the 
same machine as mixmaster is running on.

Help?