187-84-176-19.allrede.tec.br has no MX records.
Question and response
Question
dig 187-84-176-19.allrede.tec.br. MX
Answer
The response has no answer records.
Authority
allrede.tec.br. 3600 SOA ns1.allrede.tec.br. hostmaster.allrede.tec.br. 1771681385 3600 86400 2419200 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0