Question and response
Question
dig _spf.uni-rostock.de. TXT
Answer
_spf.uni-rostock.de. 3600 TXT "v=spf1 ip4:139.30.22.71 ip4:139.30.22.72 ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0