_acme-challenge.mx0.ozlabs.org. A MX TXT RRSIG NSEC
Question and response
Question
dig mx0.ozlabs.org. NSEC
Answer
mx0.ozlabs.org. 900 NSEC _acme-challenge.mx0.ozlabs.org. A MX TXT RRSIG NSEC
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0