_acme-challenge.mx.abuse.net. A AAAA RRSIG NSEC CAA
Question and response
Question
dig mx.abuse.net. NSEC
Answer
mx.abuse.net. 3600 NSEC _acme-challenge.mx.abuse.net. A AAAA RRSIG NSEC CAA
Authority
abuse.net. 3600 NS sdn.iecc.com.
abuse.net. 3600 NS osdn.services.net.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0