_spf.o264.mx.srv.dfn.de. TXT RRSIG NSEC
Question and response
Question
dig _spf.o263.mx.srv.dfn.de. NSEC
Answer
_spf.o263.mx.srv.dfn.de. 3600 NSEC _spf.o264.mx.srv.dfn.de. TXT RRSIG NSEC
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0