telapex.com has no MX records.
Question and response
Question
dig telapex.com. MX
Answer
The response has no answer records.
Authority
telapex.com. 300 SOA ns1.p201.dns.oraclecloud.net. hostmaster.telapex.com. 201630452 3600 600 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0