Hi Artisten,
And that blacklisting was not for nothing, see how that server with your IP has been misused and abused here: http://support.clean-mx.de/clean-mx/viruses.php?sort=firstseen%20desc&review=88.87.44.66 (malcode all dead or closed now - longest open for over 26 hours)
There has also been reports of PHISHING for that IP and was listed here http://www.e-fensive.net/malware.pests
Also a lot of defacements foing on: http://support.clean-mx.com/clean-mx/portals.php?ns2=ns1.proisp.no&sort=id%20DESC&response=alive
Reputation of your bad webhost: First Bad Host Appearance approximately 2 years, 10 months, 5 weeks ago
Last Bad Host Appearance within 2 years, 9 months, 1 week
Bad Host Appearances 58 appearance(s) in spam e-mail or spam post urls
polonus