Signal
Dark, cinematic, and premium—with the filtering decision visualized as a live signal.
View SignalSpam filtering for your domain, by webdfw
Spam stops before your server.
You never lose a real email.
Point your domain's mail at us and junk never reaches your inbox — while anything even slightly borderline is held for you to see, not silently deleted. Set up in minutes. Leave any time, with your data.
Free during the pilot — no payment details asked.
How it works
Mail filtering the standard way — at your domain's front door — with a setup that can't lose mail.
1
Tell us your domain
We auto-detect your current mail server and confirm we can deliver to it with a coded test email — before anything changes. A wrong setting can't black-hole your mail.
2
Point your MX at us
One DNS change at your registrar. From that moment, every message is scanned by dozens of checks — sender reputation, authentication, content signals — before your server ever sees it.
3
Clean mail flows through
Good mail is delivered to your existing server, exactly as before. Junk is stopped. You get a simple site to see every decision — and overrule us in one click.
The honest way to handle "maybe"
Every filter faces the same problem: some mail isn't clearly good or clearly junk. Most products quietly guess — and a guess that's wrong costs you a customer's email. We do it differently: the borderline band is held for you. You can see it, release it to your inbox in one click, and trust the sender so it never happens again.
delivered — clearly fine
held for you
rejected — clearly junk
Every message gets a score. Only the clearly-junk end is refused; the "maybe" slice waits for your call.
Built on three promises
🔒 We never read your mail
We filter on metadata and signals — message bodies are never stored, never shown, never read, not even by us. Held mail keeps a delivery copy for a few days so you can release it; that's it. The full data story →
📬 Down ≠ lost
Email is designed to retry: if we're ever unreachable, sending servers queue and retry automatically for days. An outage delays mail — it doesn't lose it.
🚪 Leaving is easy
No lock-in, on purpose. A guided exit walks you through repointing your MX first, hands you your lists and history as a CSV, and only then closes the account.
Design exploration
Five ways SpamFilter could introduce itself
These standalone concepts explore different visual voices while keeping the same promise: obvious junk stops at the edge, uncertain mail waits for your decision, and your mail stays private.
Steward
Warm editorial storytelling centered on careful handling, judgment, and trust.
View StewardOrbit
Bright, energetic, and approachable—a playful take on serious mail protection.
View OrbitControl
A technical control-room direction that makes every filtering outcome inspectable.
View ControlNeighbor
Friendly, plain-spoken, and local—built for small businesses that want a human answer.
View NeighborGet started
The pilot is free — we're a small Texas shop (webdfw) proving this with real businesses, and pilot customers get direct access to the people who run the filter. Setup is self-serve and takes about ten minutes plus a DNS change.
The customer site (signup, activity feed, quarantine, team access) is in active development — see the FAQ for what's included today.