The SPF records are for outbound mail from your domain, so you need to replace your servers on that list with ours.
The "Outbound scanning is enabled" message you got will have mentioned that:
If you wish to publish an SPF record for the outbound domain, it should include the text
include:spf.outbound.canit.ca as in the example below:
"v=spf1 include:spf.outbound.canit.ca ?all"