54.77.14.22.
Question and response
Question
dig mx1-out1-eu.jivehosted.com. PTR
Answer
mx1-out1-eu.jivehosted.com. 300 PTR 54.77.14.22.
Authority
jivehosted.com. 172800 NS ns-125.awsdns-15.com.
jivehosted.com. 172800 NS ns-1257.awsdns-29.org.
jivehosted.com. 172800 NS ns-1817.awsdns-35.co.uk.
jivehosted.com. 172800 NS ns-988.awsdns-59.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0