antispam5.nepustil.net has no MX records.
Question and response
Question
dig antispam5.nepustil.net. MX
Answer
The response has no answer records.
Authority
nepustil.net. 86400 SOA ns1.nepustil.net. hostmaster.nepustil.net. 2026030201 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0