Question and response
Question
dig u2437426.wl177.sendgrid.net. TXT
Answer
u2437426.wl177.sendgrid.net. 1800 TXT "v=spf1 ip4:167.89.58.181 ip4:167.89.64.157 ip4:167.89.64.5 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0