My cite is that link at the bottom of my post (for the Amazon connection).
But I didn’t say it was regular mail, I just said that they started delivering on Sundays for Amazon and that you could always pony up the extra money if you wanted to have something delivered on a Sunday.
Here’s a cite for spending extra money if you want something delivered on a Sunday…
From here
This service may be available with other options as well, this is just the first place I found it.
Easy to solve that - just make all business addresses register. For a small fee of course, to deter all and sundry.
Mail, in the sense of meaningful letters, is in a sharp decline. All my financial statements are online these days and even my car insurance is entirely an internet transaction (If I want a certificate, I have to print it myself). Cars here have had, until recently to display a disc to show that the road tax is paid - no longer - that is all online.
I suspect that there will be a time, not too far in the future, when I can put a recycling bin under my letterbox.
UPS has a flag in their database for each address, and they can tell, before shipping, if it is going to a business or residential location, because the fee is different. However, their determination of what constitutes a business might not match yours.
USPS mail at the plants is programmed so the mail for business’s closed on Saturdays to go to a “holdout” tray so the letter carriers don’t take it with them. Holdout trays also have mail that people request no delivery while they are on vacation. In the office, holdout mail is called “S999” because that’s what the label says.
As mentioned earlier, the “no mail Saturday” was a USPS management plan, no doubt proposed to get Congress to stop them from enacting it and get some money or rule changes. Even if it had gone through, the plan was still to keep the offices open and IIRC still deliver parcels.
I don’t know full details about the Amazon deal but I know USPS treats it like England treats the crown jewels. Pretty much everything else is just scanned in and totalled together. With Amazon Prime it comes on its own pallet, a clerk scans the pallet label and one parcel and then uploads the scanner. With a second scanner, the clerk scans the rest and reports the total Amazon parcels, which must match what the manifest says. At the end of the day, the supervisor will check all Amazon scans and question the carrier if any delivery scans are not showing up in the computer. I know that in my office Amazon installed shelves in all our tracks.
But not yet. As an example, I just recently had dealings with my state income tax agency. One of the things they state prominently is that in order to prevent fraud, they never contact taxpayers via phone or email, but only via the USPS. The same is true of the IRS. (For questions about a filed return.)
The Post Office seems to be little more than a bulk junk-mail distribution service. 97% of the contents of my mailbox are fucking trash that just get moved from my mailbox, to my car, to my garbage. They (the Post Office) exist for advertisers sake, primarily. IMO. I hate it. I want it to go away.
Thank you for supporting our shipping center and please order more. Just not so much next December - OK? I’m not as young as I used to be. 
Our heaviest count days are always Friday to Sunday. The general speculation is that people are busier at work (their work) Monday and Tuesday and don’t order as much over the weekend when they have more interesting things to do. That and in some neighborhoods its safer and/or more fun to get deliveries over the weekend when you are home to receive them. Personally I don’t worry about it; as part time gigs go, its kind of fun and the details aren’t my concern.
(PS – Sunday delivery via USPS isn’t universal; we have several areas/pallets clearly marked “no Sunday delivery”. No idea why ---- questions like that are way over my pay grade.)
I probably get one delivery a week, on average, from Amazon. I have told people at work, “my buddy kopek sent this”. They just smile and nod.
Perhaps, but those 3% can be very important. Like a letter from the IRS telling you you’re being audited, as I alluded to above. They only send those out via the USPS.
Just to quash this little nit, the USPS does not receive taxpayer subsidies except for disabled and overseas voters.
To make me anxious and piss me off. I hate getting mail. It’s very seldom anything I want to hear. Just about all of it requires me to do something I’d rather not do- sort and throw out junk mail, pay bills, fix something that has gotten screwed up somehow.
But if the USPS were unavailable, I’m sure they’d find another way. Fuckers are resourceful.
They do receive government benefits, though – most notably, it’s simply illegal for anyone else to deliver a letter to a mailbox.
Every argument for the continued existence of the USPS fails to hold water – fundamentally, the only public interest is that some older or more rural people are unprofitable for FedEx to deliver to and do not have Internet access at home, and need to receive mail in order to pay bills and so forth.
Here’s the thing with that, in my view: The cost of installing free broadband-everywhere or giving every such person a monthly cash allowance covering the cost of a trip to the nearest public library is dwarfed a hundred times over by the amount of money the USPS loses annually. There are any number of other ways to get communication to these people without the postal service. The USPS is a relic propped up by Republicans who want to see the friendly mailman twice a day like in 1958 and Democrats who view it as a job program for the otherwise unemployable.