mdtnwi.dedicated.static.tds.net has no MX records.
Question and response
Question
dig mdtnwi.dedicated.static.tds.net. MX
Answer
The response has no answer records.
Authority
mdtnwi.dedicated.static.tds.net. 86400 SOA pv-dnsm.dns.tds.net. hostmaster.tds.net. 2025042501 900 600 86400 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0