Question and response
Question
dig u21117928.wl179.sendgrid.net. TXT
Answer
u21117928.wl179.sendgrid.net. 1800 TXT "v=spf1 ip4:134.128.88.234 ip4:149.72.199.15 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0