Question and response
Question
dig netdesignhelp.zendesk.com. TXT
Answer
netdesignhelp.zendesk.com. 3600 TXT "v=spf1 include:_netblocks.zdsys.com ~all"
Authority
zendesk.com. 172800 NS ns-1213.awsdns-23.org.
zendesk.com. 172800 NS ns-1858.awsdns-40.co.uk.
zendesk.com. 172800 NS ns-444.awsdns-55.com.
zendesk.com. 172800 NS ns-754.awsdns-30.net.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0