Question and response
Question
dig smtp.mtficore.net. NSEC
Answer
The response has no answer records.
Authority
mtficore.net. 86400 SOA dns1.ficolo.net. hostmaster.ficolo.net. 2020051901 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0