cloudsmtp-private-1b.mercadolibre.io has no NS records.
NS records for this zone are defined at mercadolibre.io.
NS records for this zone are defined at mercadolibre.io.
Question and response
Question
dig cloudsmtp-private-1b.mercadolibre.io. NS
Answer
The response has no answer records.
Authority
mercadolibre.io. 900 SOA ns-13.awsdns-01.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0