Earlier quoted context omitted.
> So what, people should only be able to email you if you've previously emailed them? No, people should be able to email me as they would normally. I should be able to block senders, or entire domains. To use a direct example: if I decide that substack is shit because they subscribe people without consent (which is exactly true), then I should be able to block all things from substack and not just a single email addr…
Set up a filter from substack to the spam folder. I filter a number of domains directly to trash.
Can you walk me through the steps? Gmail doesn't let you create a filter which sends to the spam box. There used to be, but it was taken away. I know because I used it a lot.
Even if the feature was still there, it was still received instead of rejected, and it only moves the offending mail to the spam box instead of deleting it.