Question and response
Question
dig vtogs-us1.vtigermail.com. A
Answer
vtogs-us1.vtigermail.com. 3600 A 104.236.103.204
Authority
vtigermail.com. 3600 NS pdns02.domaincontrol.com.
vtigermail.com. 3600 NS pdns01.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0