Oh man, I feel this problem. I had a heck of a time in a similar situation, and eventually wound up calling different likely local stores in the area I was looking at sending it (Edmonton, AB in my case).
Canada Post is not beloved by many -- even when you're just talking sending it from one Canadian destination to another, so I really think using the online yellow pages for the area you want to send it to is your best bet.
Another option would be to search the local newspapers online for articles about gift baskets or similar services -- at this time of year, newspapers often do round ups of such local services.