This was attempted using the base-chain and a centralized forwarding service a long time ago. The company had the number 21 in the name. Tip-of-my-tongue.
Edit: This is also a centralized forwarding service. D'Oh!
You’re thinking of 21.co which was rebranded to earn.com #22625
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Yes and this is just custom Strike replacement for lightning address.
It does not solve spam problem. Emails leak by design and could be collected and used by third parties.
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