Definition
With sift.mx, unsolicited senders either pay your cover to be delivered or they do not reach you. Serious outreach can still get through; drive-by spam pays you or dies in quarantine.
Spam that costs someone else
Traditional filters hide junk in a folder you still have to manage. A cover flips the incentive: mass senders who will not pay never consume your attention, and senders who will pay compensate you for the interruption.
You still control the whitelist
Partners, friends, and domains you trust bypass the cover entirely. Getting paid for unknowns does not mean charging people you already chose to hear from.
Credits you can withdraw
Cover payments land as credits (1 credit = $0.10). When withdrawals are enabled, you cash out through Stripe Connect. The platform fee is taken at withdrawal—not when the message is delivered.