Question and response
Question
dig viettel.com.vn. MX
Answer
viettel.com.vn. 300 MX 5 mailfilter-in-02.viettel.com.vn.
Authority
viettel.com.vn. 86400 NS dns1.vietel.com.vn.
viettel.com.vn. 86400 NS dns2.vietel.com.vn.
Additional
mailfilter-in-02.viettel.com.vn. 86400 A 203.190.168.19
dns1.vietel.com.vn. 86400 A 203.113.131.1
dns2.vietel.com.vn. 86400 A 203.113.188.2
dns1.vietel.com.vn. 86400 AAAA 2402:800:20ff:1111:0:0:0:1
dns2.vietel.com.vn. 86400 AAAA 2402:800:20ff:2222:0:0:0:1
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0