mail.acserviceall.com has no NS records.
NS records for this zone are defined at acserviceall.com.
NS records for this zone are defined at acserviceall.com.
Question and response
Question
dig mail.acserviceall.com. NS
Answer
The response has no answer records.
Authority
acserviceall.com. 86400 SOA ns21.ecomsiam.com. technical.ecomsiam.com. 2026012503 3600 1800 1209600 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0