Question and response
Question
dig u3789899.wl150.sendgrid.net. TXT
Answer
u3789899.wl150.sendgrid.net. 1800 TXT "v=spf1 ip4:167.89.108.1 ip4:167.89.108.13 ip4:167.89.92.35 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0