auth0.dns.techfak.uni-bielefeld.de has no MX records.
Question and response
Question
dig auth0.dns.techfak.uni-bielefeld.de. MX
Answer
The response has no answer records.
Authority
TechFak.Uni-Bielefeld.DE. 3600 SOA dns.techfak.uni-bielefeld.de. hostmaster.techfak.uni-bielefeld.de. 2026030501 10800 1800 3600000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0