Question and response
Question
dig elasticemail.info. MX
Answer
elasticemail.info. 3600 MX 5 mx.inbound.elasticemail.com.
Authority
elasticemail.info. 3600 NS pdns10.domaincontrol.com.
elasticemail.info. 3600 NS pdns09.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0