mail.conectja.com.223.197.168.in-addr.arpa has no MX records.
Question and response
Question
dig mail.conectja.com.223.197.168.in-addr.arpa. MX
Answer
The response has no answer records.
Authority
223.197.168.in-addr.arpa. 300 SOA ns1.conectja.com. hostmaster.conectja.com. 2021050300 10800 3600 2419200 300
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0