ptr.kartelkomi.ru has no MX records.
Question and response
Question
dig ptr.kartelkomi.ru. MX
Answer
The response has no answer records.
Authority
ptr.kartelkomi.ru. 86400 SOA ns3.kartelkomi.ru. noc.kartelkomi.ru. 2024110602 86400 14400 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0