Question and response
Question
dig _spfblock.salesforce.com. TXT
Answer
_spfblock.salesforce.com. 3600 TXT "v=spf1 ip4:198.245.81.1 ip4:198.245.95.4/30 ip4:207.67.38.45 ip4:68.232.207.20 exists:%{i}._spf.corp.salesforce.com ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0