_dc-mx.093dab9bf056.libroabierto.net.do has no NS records.
NS records for this zone are defined at libroabierto.net.do.
NS records for this zone are defined at libroabierto.net.do.
Question and response
Question
dig _dc-mx.093dab9bf056.libroabierto.net.do. NS
Answer
The response has no answer records.
Authority
libroabierto.net.do. 1800 SOA carioca.ns.cloudflare.com. dns.cloudflare.com. 2398457830 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0