> Also I wish I could opt to "block sender" for ads and other junk. The post office would still get money/postage, but I would just give the post office advance

> Also I wish I could opt to "block sender" for ads and other junk. The post office would still get money/postage, but I would just give the post office advanced consent to shred/recycle all mail from this sender and consider it officially delivered. I don't think you understand how junk mail works -- the mailers have a close business relationship with the USPS, and the fact that you can't 'block' it is a deliberate design pattern. Junk mail is a huge (possibly the major?) revenue stream for the post office. Forcing you to physically handle their advertising message before discarding it is the whole value proposition of this form of advertising; junk mailers aren't gonna keep paying the USPS if the ads are never getting to you.