112.158.213.in-addr.arpa has no MX records.
Question and response
Question
dig 112.158.213.in-addr.arpa. MX
Answer
The response has no answer records.
Authority
112.158.213.IN-ADDR.ARPA. 1800 SOA ns1.ennit.net. hostmaster.tng.de. 2024112102 14400 7200 1209600 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0