ans3.ewetel.net has no MX records.
Question and response
Question
dig ans3.ewetel.net. MX
Answer
The response has no answer records.
Authority
ewetel.net. 86400 SOA ans0.ewetel.de. hostmaster.ewetel.de. 2025201268 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0