Question and response
Question
dig cluster1.us.messagelabs.com. A
Answer
cluster1.us.messagelabs.com. 60 A 67.219.247.202
cluster1.us.messagelabs.com. 60 A 67.219.250.212
cluster1.us.messagelabs.com. 60 A 67.219.250.215
cluster1.us.messagelabs.com. 60 A 67.219.246.215
cluster1.us.messagelabs.com. 60 A 67.219.247.106
cluster1.us.messagelabs.com. 60 A 67.219.250.218
cluster1.us.messagelabs.com. 60 A 67.219.247.204
cluster1.us.messagelabs.com. 60 A 67.219.246.208
Authority
messagelabs.com. 180 NS ns-1296.awsdns-34.org.
messagelabs.com. 180 NS ns-1714.awsdns-22.co.uk.
messagelabs.com. 180 NS ns-453.awsdns-56.com.
messagelabs.com. 180 NS ns-520.awsdns-01.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0