_spf.inter-it.nl. TXT RRSIG NSEC
Question and response
Question
dig _mx.inter-it.nl. NSEC
Answer
_mx.inter-it.nl. 3600 NSEC _spf.inter-it.nl. TXT RRSIG NSEC
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1680, xrcode 0, version 0, flags 0