Just have Canada post fwd your mail.
https://www.canadapost.ca/web/en/pro...d_your_mail_wh
It is $90 per year and works great. When we moved we had it forwarded for 2 years to catch all the once a year mail outs (charity tax receipts etc) to make sure the stuff we changed addresses last year made it.
90% just junk mail got fwded but it was worth it for the few things that weren't