spf.lidc.telus.com has no MX records.
Question and response
Question
dig spf.lidc.telus.com. MX
Answer
The response has no answer records.
Authority
lidc.telus.com. 3600 SOA pri1.dns.ca.telus.com. hostmaster.dco.psi.ca. 2023102006 28800 1800 2592000 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0