ns2.afraid.org has no MX records.
Question and response
Question
dig ns2.afraid.org. MX
Answer
The response has no answer records.
Authority
afraid.org. 3600 SOA ns1.afraid.org. dnsadmin.afraid.org. 2602210011 86400 7200 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0