mail2.sinergy.com.co has no NS records.
NS records for this zone are defined at sinergy.com.co.
NS records for this zone are defined at sinergy.com.co.
Question and response
Question
dig mail2.sinergy.com.co. NS
Answer
The response has no answer records.
Authority
sinergy.com.co. 86400 SOA ns1.a2hosting.com. root.mi3-ss49.a2hosting.com. 2026031907 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0