Comment by dredmorbius

I'd make one significant change to the proposal in the comment.

The delivery penalty applies to any unsolicited email, as determined by the recipient.

If also tagged as scam, those are further forwarded to law enforcement (state, national) for investigation.

Many US states are one-party regarding recording. Even in two-party states (CA, OR, WA, MT, IL, PA, MA, CT, NH, MD, DE, FL), disclosed recording and continuing a call will generally be construed as consent. If that's not the case, proposed state or national legislation could carve out exceptions as needed, and there'll likely need to be some legislation required anyway, so that's part of the process.

But shifting the fee element from fraud (one class of unsolicited call/text abuse) to undesired contact makes sorting when the fee applies far more evident, and eliminates a class of other objections (e.g., due process) from consideration.