Canada Post, the equivalent of the USPS in Canada, offers exactly this service [1]
I've used it for Know-Your-Client type stuff with banks, but it is theoretically open to most if not all businesses. Every time I've needed to interact with it, it's been a straightforward process as a consumer.
I've used it for Know-Your-Client type stuff with banks, but it is theoretically open to most if not all businesses. Every time I've needed to interact with it, it's been a straightforward process as a consumer.
[1]: https://www.canadapost-postescanada.ca/cpc/en/business/posta...