Question and response
Question
dig global.exacttarget.com. PTR
Answer
The response has no answer records.
Authority
global.exacttarget.com. 300 SOA gtm01.exacttarget.com. hostmaster.exacttarget.com. 2020101447 10800 3600 604800 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0