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by Spivak 960 days ago
> The carrier has no way of knowing that.

Let's do that then. Seems like it would be the best of all worlds. Click on "Sign up for text alerts" go through the OAuth flow and the user grants you the ability to text them (and importantly revoke that privilege) they never learn your number and you can send messages directly via API and avoid the Twilio overhead. The carrier(s) set up strict rules for what kinds of messages you can send and how often and violating them means your app id getting pulled.

God I wish we would just do this for email as well. Spam would just stop being an issue for 99% of cases.