host4.hay.net has no MX records.
Question and response
Question
dig host4.hay.net. MX
Answer
The response has no answer records.
Authority
hay.net. 600 SOA ns1.hay.net. alerts.haymail.ca. 2026030611 3601 1800 1209600 600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0