_acme-challenge.nc.ext.office.inttech.de has no MX records.
Question and response
Question
dig _acme-challenge.nc.ext.office.inttech.eu. MX
Answer
The response has no answer records.
Authority
inttech.eu. 180 SOA ns.inttech.de. support.int-tech.de. 2026022825 10000 1800 604800 180
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0