More sorbs blacklisting

[Kurt Petersen <kurt@ache.dk>]

Hi 

sorbs is now blacklisting sites because they guess that it is a
dynamic ip number. 

<sxxx@xxxxx.dk>: host mgw.netsite.dk[193.29.201.11] said: 554 Service
    unavailable; Client host [213.237.12.137] blocked using
    dul.dnsbl.sorbs.net; Dynamic IP Addresses See:
    http://www.sorbs.net/lookup.shtml?213.237.12.137 (in reply to RCPT
    TO command)

My IP number is 213.237.12.137. 
The reverse is 213.237.12.137.adsl.vby.tiscali.dk

There is no indication of a dynamic IP number - and it is not. It has
been fixed for many years.

Is this a new sorbs idea?

Kurt