secondary006.dtag.net has no MX records.
Question and response
Question
dig secondary006.dtag.net. MX
Answer
The response has no answer records.
Authority
dtag.net. 3600 SOA pns.dtag.de. dns.telekom.de. 2024022600 10800 3600 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0