Question and response
Question
dig sendgrid.net. MX
Answer
sendgrid.net. 90 MX 10 mx.sendgrid.net.
sendgrid.net. 90 MX 20 mx2.sendgrid.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0