ns2.colordns.de has no MX records.
Question and response
Question
dig ns2.colordns.de. MX
Answer
The response has no answer records.
Authority
colordns.de. 86400 SOA ns1.colordns.de. hostmaster.colordns.de. 2024111301 86400 28800 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0