Personalized Mail Considered As A Stamp Or Not?

Are these personalized Mail covers printed at home or office using a regular computer or are they printed by and through the post office?
Received this one in the mail from Ford and at first glance I thought it was a stamp then realized it was just printed on the envelope.
Are the light pink bars along the bottom on the reverse side of the envelope put there by the post office as a cancel or is this all just junk mail?
Are these collected as stamps?

Cheers, Bill

I would call these personalized postal stationery.

I have a small accumulation of the cutouts/cut squares. Some of these cutouts appear on ebay on the "Cinderella stamps" category...where, unsurprisingly, the sellers ask ridiculous/silly prices for them.

I've been doing a lot of reading on all aspects of this hobby and believe I read somewhere that Canada Post first offered digital stamps in 1998.
Wouldn't this be called a digital stamp or is this something different?

Cheers, Bill

The pink bars on the back of the envelope are applied by the USPS.

Perhaps someone can tell us what specifically they are, but they would seem to be routing information. I have seen then for some time on incoming mail. Just got one today.

Bookbndrbob has it correct - it is not a stamp but stationery

Peter

jleb19179, these were sent through the Canadian post office, not the USPS.
The bars were PostBars or CPC 4-State, and is a barcode system used by Canada Post in its automated mail sorting and delivery operations.

James, thanks for naming them. I did not know the proper name for them. I knew Canada Post had applied them to the rear of mail as it passes thru their sorting equipment for several years now. Routing as well as date code at end. I have them in yellow, orange, green, red and pink. Do they ever light up pretty under the long wave uv light.