Question and response
Question
dig mxmail.register.com. A
Answer
mxmail.register.com. 1800 CNAME mx02.register.com.
mx02.register.com. 300 A 209.17.115.10
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0