stream has no MX records.
Question and response
Question
dig stream. MX
Answer
The response has no answer records.
Authority
stream. 900 SOA ns1.dns.nic.stream. admin.tldns.godaddy. 1772012492 1800 300 604800 1800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0