update failed: 'RRset exists (value dependent
i am having a problem with 1 of my domains, that i keep getting these messages in /var/log/messages like every 4 minutesMay 26 23:23:43 server01 named[6040]: client 80.61.222.21#43165: update 'xxxxx.nl/IN' denied
and this some entries / day
May 26 22:44:13 server01 named[6040]: client 80.61.222.21#43116: updating zone 'xxxxxx/IN': update failed: 'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET)
the ip 80.61.222.21 is not mine, nor my hosters ip