Question and response
Question
dig smtp688.us.confirmit.com. SPF
Answer
The response has no answer records.
Authority
confirmit.com. 86400 SOA udns1.cscdns.net. hostmaster.cscdns.net. 2018082972 10800 1800 1814400 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0