98.59.199.in-addr.arpa has no MX records.
Question and response
Question
dig 98.59.199.in-addr.arpa. MX
Answer
The response has no answer records.
Authority
98.59.199.in-addr.arpa. 600 SOA ns1.datanap.net. hostmaster.volico.com. 2025060901 60 60 604800 600
Additional
. 0 OPT ; payload 2800, xrcode 0, version 0, flags 0