ns2.telekom-domains.de has no MX records.
Question and response
Question
dig ns2.telekom-domains.de. MX
Answer
The response has no answer records.
Authority
telekom-domains.de. 86400 SOA ns1.telekom-domains.de. dnsadmin.nic.dtag.de. 2026021201 21600 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0