Question and response
Question
dig mx.portsit.com. NSEC3
Answer
The response has no answer records.
Authority
portsit.com. 3600 SOA dns01.dipcon.com. registry.ports.net. 2026021500 1800 900 1814400 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0