It seems the check for http.dnsbl.sorbs.net is not working correctly. My test IP is not listed here http://www.sorbs.net/lookup.shtml but UTM tells me
"Client is listed on DNSRBL http.dnsbl.sorbs.net"
I also see this on customer UTMs (had to disable bad reputation checks) - so it seems to be a general problem...
Anybody can confirm this too?