mail.polyfer.at has no MX records.
Question and response
Question
dig mail.polyfer.at. MX
Answer
The response has no answer records.
Authority
polyfer.at. 3600 SOA ns5.kapper.net. dns.kapper.net. 2024051401 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0