[rglullis]

For Snapchat/LinkedIn/Instagram: just close your account and put email filters?

[kube-system]

In that case, the problem is just as easy to solve with snail mail. Remove your mailbox and your mail will be returned as undeliverable.

[xmprt]

You are legally required to be reachable by mail by the US government. Unless you're planning on being an undocumented citizen living on US land off the grid, you will need a mail box.