core.adams.net has no MX records.
Question and response
Question
dig core.adams.net. MX
Answer
The response has no answer records.
Authority
core.adams.net. 3600 SOA ns.adams.net. noc.adamstel.com. 2026021201 7200 1800 1209600 43200
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0