Question and response
Question
dig em.oi.com.br. MX
Answer
em.oi.com.br. 900 MX 5 mx.sendgrid.net.
Authority
The response has no authority records.
Additional
mx.sendgrid.net. 57 A 13.216.54.185
mx.sendgrid.net. 57 A 15.222.160.229
mx.sendgrid.net. 57 A 16.52.61.209
mx.sendgrid.net. 57 A 52.25.213.239
mx.sendgrid.net. 57 A 16.52.110.174
mx.sendgrid.net. 57 A 52.37.49.26
mx.sendgrid.net. 57 A 34.198.67.24
mx.sendgrid.net. 57 A 44.245.249.202
mx.sendgrid.net. 57 A 44.216.124.122
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0