ws210010.ca.pccwglobal.com has no MX records.
Question and response
Question
dig ws210010.ca.pccwglobal.com. MX
Answer
The response has no answer records.
Authority
pccwglobal.com. 1800 SOA jake.ns.cloudflare.com. dns.cloudflare.com. 2395499933 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0