brokaddr - 11:19 am on Jul 1, 2011 (gmt 0)
I live in Canada - fraud *within* Canada is nowhere as near as rampant as fraud from the USA and other parts of the world -- if you discern that fact, you may one day bypass my legit CC info & ship to a fraudster!
The caveats with a Canadian address should be *no different* than those in the US. Compare the routines to your legit Canadian customers. Notice anything weird? Cancel it.
Easy as pie. If you want to get technical, I notice (with my Ca-based biz) that most fraud originates from coastal areas of the US! If I were to cut-off/limit those areas from dispatch on mere suspicion, I'd lose a heap of orders.