ficolosmtp._domainkey.ficore.net has no NS records.
NS records for this zone are defined at ficore.net.
NS records for this zone are defined at ficore.net.
Question and response
Question
dig ficolosmtp._domainkey.ficore.net. NS
Answer
The response has no answer records.
Authority
ficore.net. 3600 SOA dns1.ficolo.net. hostmaster.ficolo.net. 2020091600 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0