lauck-it.net has no MX records.
Question and response
Question
dig lauck-it.net. MX
Answer
The response has no answer records.
Authority
lauck-it.net. 900 SOA ns1-tec.de. webmaster.lauck-it.net. 2026022501 14400 1800 2592000 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0