emita3.mittwald.de has no MX records.
Question and response
Question
dig emita3.mittwald.de. MX
Answer
The response has no answer records.
Authority
mittwald.de. 300 SOA ns01.agenturserver.de. support.mittwald.de. 1772179915 28800 7200 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0