cns3.cloudpit.io has no MX records.
Question and response
Question
dig cns3.cloudpit.io. MX
Answer
The response has no answer records.
Authority
cloudpit.io. 3600 SOA cns1.cloudpit.io. hostmaster.dogado.de. 2026010805 28800 7200 604800 68400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0