Question and response
Question
dig _q.ironport.com. TXT
Answer
_q.ironport.com. 3600 TXT "v=spf1 ip4:208.90.56.0/21 ip4:208.90.58.0/24 ip4:184.94.241.0/24"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0