spn5061.telecom.regn.net has no MX records.
Question and response
Question
dig spn5061.telecom.regn.net. MX
Answer
The response has no answer records.
Authority
regn.net. 900 SOA ns1.reedelsevier.com. hostmaster.lexisnexis.com. 666 3600 900 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0