http://www.intodns.com/rts.spb.ru
Missing nameservers reported by parent FAIL: The following nameservers are listed at your nameservers as nameservers for your domain, but are not listed at the parent nameservers (see RFC2181 5.4.1). You need to make sure that these nameservers are working.If they are not working ok, you may have problems! ns2.rsspnet.ru ns4.rsspnet.ru ns.rts.spb.ru Error Missing nameservers reported by your nameservers ERROR: One or more of the nameservers listed at the parent servers are not listed as NS records at your nameservers. The problem NS records are: ns2.rts.spb.ru ns1.rts.spb.ru This is listed as an ERROR because there are some cases where nasty problems can occur (if the TTLs vary from the NS records at the root servers and the NS records point to your own domain, for example). Stealth NS records sent Stealth NS records were sent: ns2.rsspnet.ru ns4.rsspnet.ru ns.rts.spb.ru NSs have same SOA serial Looks like your nameservers do not agree on the SOA serial. Ths SOA records as reported by your nameservers: 80.93.176.22 -> 2009071705 92.53.98.42 -> 18032019 80.93.177.182 -> 2009071705 92.53.116.26 -> 18032019 92.53.98.100 -> 18032019 92.53.116.200 -> 18032019 This can cause some serious problems that is why you should fix this asap.
Про то что на половине ДНСов нет записей для ns.rts.spb.ru и ns2.rts.spb.ru, а записи для mail.rts.spb.ru ссылаются на разные адреса, на одном из которых почтой и не пахнет - я даж уже говорить не хочу
