It took me some time and some tweaking of nameservers, webservers and mailservers, but I finally got it.
I got the Hurricane Electric IPv6 Certification nailed for the “Sage” level. This is the highest level, so only a simple test to go and a daily submission of some logs for maximum points. the maximum points you can get is 1500, so I’m well on my way.
As an extra HE gives you a nice, nerdy T-Shirt, stating that you are an IPv6 guru. I can’t wait to put it on ;-)
This is the certificate.