Why refunds are the point

Most people hear "pay to email me" and picture a tollbooth. That is the wrong picture. The deposit is refundable, and in practice it is almost always refunded. The money is a signal, not a fee.

What a refund actually costs a sender

A real person writing a real message parts with a small amount for a few days and gets all of it back. That is float, not price. Once you release their deposit, they are on your allowlist and never post another one.

Why that breaks bulk sending

Bulk outreach works because sending is free at the margin. Attach even a small refundable hold to first contact and the arithmetic collapses: ten thousand strangers means ten thousand holds, and the sender only recovers the ones a human decides were worth reading.

• Honest senders pay nothing and get through.
• Low-relevance volume becomes expensive before it is ever sent.
• The recipient keeps roughly ninety percent of any deposit they claim.

The health metric is the refund rate

A network where most deposits are returned is a healthy one. It means legitimate strangers are reaching people and the deterrent is landing where it should. If retention ever became the norm, the pricing would be wrong, not the senders.