_spf.stargate.ca has no MX records.
Question and response
Question
dig _spf.stargate.ca. MX
Answer
The response has no answer records.
Authority
stargate.ca. 300 SOA ns1.starcon.com. admin.stargate.ca. 2026021801 10800 3600 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0