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Re:Man makes money from cold calls with his own higher-rate ... by brownbat on Saturday March 30, 2019 @07:35PM (#19532670)
That's why they killed Outbox, which could block paper spam. They later started running that service themselves (until they decide the security challenges are not worth it):

https://www.forbes.com/sites/theopriestley/2015/12/08/usps-l...

https://krebsonsecurity.com/2018/11/u-s-secret-service-warns...

Re:Man makes money from cold calls with his own higher-rate ... by slumos on Saturday March 30, 2019 @11:21PM (#19533584)
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.

Re:Man makes money from cold calls with his own higher-rate ... by diogenescynic on Sunday March 31, 2019 @02:12AM (#19534174)
You could sign up for Informed Deliverey online with just an address. There was no verification whatsoever.