Question and response
Question
dig _netblocks4.synchronoss.com. TXT
Answer
_netblocks4.synchronoss.com. 1800 TXT "v=spf1 include:aspmx.pardot.com include:mailgun.org ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0