It seems Canada Post has changed their tracking URL's. It used to work when I would send one to my phone it would open Deliveries and fill in the tracking number and carrier. Now when I do it I get an error saying it couldn't find the tracking ID. The URL which comes from Canada Post's website is https://www.canadapost.ca/trackweb/en#/search?searchFor=0000000000000000
where the 0's are replaced by the tracking number.