cl2-tld.d-zone.ca has no MX records.
Question and response
Question
dig cl2-tld.d-zone.ca. MX
Answer
The response has no answer records.
Authority
d-zone.ca. 300 SOA ns01.cira.ca. admin-dns.cira.ca. 2025122558 1800 900 604800 300
Additional
. 0 OPT ; payload 1400, xrcode 0, version 0, flags 0