srv.lwlcom.net has no MX records.
Question and response
Question
dig srv.lwlcom.net. MX
Answer
The response has no answer records.
Authority
srv.lwlcom.net. 3600 SOA ns01.lwldns.de. noc.lwlcom.net. 2026022401 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0