Question and response
Question
dig u21890913.wl164.sendgrid.net. TXT
Answer
u21890913.wl164.sendgrid.net. 1800 TXT "v=spf1 ip4:159.183.193.109 ip4:159.183.200.101 ip4:159.183.213.105 ip4:159.183.213.107 ip4:159.183.213.204 ip4:159.183.214.96 ip4:167.89.110.192 ip4:167.89.126.180 ip4:50.31.57.204 -all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0