mx02.muerznet.at has no MX records.
Question and response
Question
dig mx02.muerznet.at. MX
Answer
The response has no answer records.
Authority
muerznet.at. 3600 SOA dns2.muerznet.at. it.mznet.at. 2024091601 3600 300 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0