smtp.cclgroup.ca has no MX records.
Question and response
Question
dig smtp.cclgroup.ca. MX
Answer
The response has no answer records.
Authority
cclgroup.ca. 300 SOA ns1.hover.com. dnsmaster.hover.com. 1720468336 1800 900 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0