Thank you, spammers and virus writers!
It seems that someone has forged messages from a number of addresses at the julf.com domain, possibly containing a virus and pointing to this web address.
The messages appear to come from dsl-36214.solcon.nl [212.45.36.214], an address registered to Solcon Internetdiensten BV in Dronten, The Netherlands (based on RIPE WHOIS data, as of Novem 20, 2004. Their WHOIS data states:
Abuse-mail should be directed to abuse@solcon.nl
Technical issues can be directed to noc@solcon.nl
The WHOIS entry also contains the contact address beheer@solcon.nl
For now, my normal home page is off-line, maybe this is a good opportunity to finally update it.
Julf