dns2.lrz.bayern has no MX records.
Question and response
Question
dig dns2.lrz.bayern. MX
Answer
The response has no answer records.
Authority
lrz.bayern. 86400 SOA dns1.lrz.de. hostmaster.lrz.de. 2025042811 10800 3600 1814400 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0