Emailing a photo of the front of an envelope, as Informed Delivery does, is very different from opening mail addressed to another person. I beleive I’m remember

Emailing a photo of the front of an envelope, as Informed Delivery does, is very different from opening mail addressed to another person. I beleive I’m remembering correctly that when I looked into Outbox in 2014, they required a Power of Attorney! When I signed up for Informed Delivery, I had to show id at a USPS office. Seems like fairly strong authentication when compared to any other web or mail service.