vps1.riskymh.dev has no MX records.
Question and response
Question
dig vps1.riskymh.dev. MX
Answer
The response has no answer records.
Authority
riskymh.dev. 1800 SOA brad.ns.cloudflare.com. dns.cloudflare.com. 2398168963 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0