Post Office has a new app for packages

[gadgetmans_attic]

See Incoming Mail
in Your Email

Preview mail and track packages with Informed Delivery® notifications.*

Sign Up for Informed Delivery for Free

Informed Delivery dashboard, mobile app, and email notifications include grayscale images of letter-sized mail, package tracking information, and some color images.

[readabouthorses]

They have had that for a long long time. I've used it since it was first available and it is awesome. It was great being able to check my rural mailbox which was almost a mile from my house and see if anything important was there and now to check my PO Box so I don't make the 12 mile round trip for a bunch of junk mail.