Question and response
Question
dig mx01.hop.sfr.net. PTR
Answer
The response has no answer records.
Authority
hop.sfr.net. 86400 SOA nspriprov.dns.sfr.net. support.dns.sfr.net. 2024101600 10800 3600 1814400 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0