ftth-static-72-19-39-021.rioaccess.com has no MX records.
Question and response
Question
dig ftth-static-72-19-39-021.rioaccess.com. MX
Answer
The response has no answer records.
Authority
rioaccess.com. 86400 SOA ns1.scnresearch.com. hostmaster.ns1.scnresearch.com. 2024030801 21600 3600 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0