I have domain, let call it domain1.tld.
It is correctly configured on DNS servers ns.hoster.com.
Whois points to correct DNS server ns.hoster.com.
I can obtain PTR record for this domain, querying ns.hoster.com, like:
[root@myserver ~]# nslookup -type=ptr dom.ain.ip.addr ns.ip.ad.dr
addr.ip.ain.dom.in-addr.arpa name = domain1.tld
[root@myserver ~]# nslookup -type=ptr dom.ain.ip.addr
;; Got SERVFAIL reply from 192.168.55.1, trying next server
;; Got SERVFAIL reply from 220.127.116.11, trying next server
Domain itself is resolving ok.
This domain is at least week old, so, propagation must be not an issue.
Could anyone advise, what is wrong here?