Question and response
Question
dig kohoan.com. MX
Answer
kohoan.com. 1800 MX 10 kohoan.com.
Authority
kohoan.com. 1800 NS dns1.registrar-servers.com.
kohoan.com. 1800 NS dns2.registrar-servers.com.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0
kohoan.com. 1800 A 23.163.216.18