_25._tcp.smtp.is.hvfree.net. A AAAA RRSIG NSEC
Question and response
Question
dig smtp.is.hvfree.net. NSEC
Answer
smtp.is.hvfree.net. 1800 NSEC _25._tcp.smtp.is.hvfree.net. A AAAA RRSIG NSEC
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0