s1.orgaristo.de has no MX records.
Question and response
Question
dig s1.orgaristo.de. MX
Answer
The response has no answer records.
Authority
s1.orgaristo.de. 3600 SOA ns1.s1.orgaristo.de. root.ns1.s1.orgaristo.de. 2026021604 3600 600 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0