Question and response
Question
dig core.kcom.com. MX
Answer
core.kcom.com. 28800 MX 10 webmail.ipnoc.kcom.com.
core.kcom.com. 28800 MX 20 mailspool.core.kcom.com.
core.kcom.com. 28800 MX 30 otherspool.core.kcom.com.
Authority
core.kcom.com. 28800 NS ibex.kcom.com.
core.kcom.com. 28800 NS bison.kcom.com.
Additional
webmail.ipnoc.kcom.com. 28800 A 212.50.161.147
mailspool.core.kcom.com. 28800 A 213.249.210.8
mailspool.core.kcom.com. 28800 A 213.249.210.9
otherspool.core.kcom.com. 28800 A 213.249.130.101
ibex.kcom.com. 28800 A 212.50.160.28
bison.kcom.com. 28800 A 212.50.161.28
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0