Question and response
Question
dig alestra.com.mx. MX
Answer
alestra.com.mx. 0 MX 0 alestra-com-mx.mail.protection.outlook.com.
Authority
alestra.com.mx. 86400 NS mail2.alestra.net.mx.
alestra.com.mx. 86400 NS mail1.alestra.net.mx.
alestra.com.mx. 86400 NS dns.alestra.net.mx.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0