remote.bartolosch.de has no MX records.
Question and response
Question
dig remote.bartolosch.de. MX
Answer
The response has no answer records.
Authority
bartolosch.de. 14400 SOA ns1.routing.net. administrator.bartolosch.de. 2025042500 86400 7200 3600000 43200
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0