mx2.denic.DE has no TXT records.
Question and response
Question
dig mx2.denic.DE. TXT
Answer
The response has no answer records.
Authority
denic.de. 1800 SOA ns1.denic.de. dns-operations.denic.de. 1772620662 10800 1800 3600000 1800
Additional
. 0 OPT ; payload 1452, xrcode 0, version 0, flags 0