Question and response
Question
dig ab.sendgrid.net. TXT
Answer
ab.sendgrid.net. 1800 TXT "v=spf1 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ~all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0