What have I done wrong? If you do a ptr lookup in the dns for 81.187.xxx.201 all is well, same is true for 81.187.xxx.199, but not 81.187.xxx.200? Tried it from more than one dns server too.
- update : the ptr records are supposed to be defined on AA.net.uk’s servers. I can't set ptr records myself on my own server, it's a hosted dns server provided by ukservers ltd (virtualnames), and for some reason it doesn't support entering ptr records, just A / AAAA / CNAME / MX / TXT / SPF etc. - the usual cast.
On AA’s server ‘clueless.aa.net.uk’ I deleted the ptr record and added it back. It now seems to be visible. What on earth?