Question and response
Question
dig smtp.blacom.net. PTR
Answer
The response has no answer records.
Authority
blacom.net. 3600 SOA dns1.internetcomunicate.mx. antonio.internetcomunicate.mx. 2026014903 1800 900 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0