OnlySeriousEmail
OnlySeriousEmail is free to use and protects your inbox by requiring unknown senders to pay a small confirmation fee. Trusted contacts reach you instantly. Only serious messages get through.
Free for recipients. Unknown senders pay a small confirmation fee to reach you.
How it works
Publish a protected address
Share a protected @OnlySerious.email address publicly without exposing your real inbox to unsolicited mail.
Request delivery confirmation
Unknown senders receive a one-time confirmation request. Once they pay the confirmation fee, the message is released to your real inbox.
Build your trusted contacts
Senders who confirm become trusted. You can also add contacts manually — future messages skip the fee.
For senders
If you receive a delivery confirmation request, the recipient uses OnlySeriousEmail to limit unsolicited outreach. Confirming delivery releases your message immediately and may allow future messages without confirmation.