About SpamBuster

We don’t block bad senders. We allow good ones.

SpamBuster is a revolutionary email verification service that flips the script on spam detection. Instead of looking for what’s wrong, we allow what’s right.

If a sender is in your contact list, or you’ve ever sent them an email, they’re allowed through. If not, we ask the sender to verify they’re human and the message isn’t spam. Simple.

Why we built it

Why make another spam tool?

…because none of them work.

Existing anti-spam solutions fail because they operate backwards. They try to identify bad senders, then block them. But bad senders just rotate addresses, IPs, and domains. The list never wins.

SpamBuster takes the opposite approach: let me choose known-good senders, keep track of them, and stop allowing bad guys through entirely.

SpamBuster mascot
Stories that made this real

Two emails that changed everything.

2018

The direct deposit scam

One payday, my bank account showed a balance that didn’t match what should have landed. A scammer had impersonated me over email to our company Controller, requesting a change to my direct deposit details.

The Controller isn’t naive, or new, or even gullible. But that one email looked legitimate enough — and that was all it took.

2024

My daughter’s ransomware

My daughter got an email from what looked like a friend, asking her to try a game. The link installed malware that exfiltrated her entire Chrome password list. She faced extortion attempts and lost hours, across multiple days, resetting her computer.

Both incidents share the same root cause: a single bad email got through.

SpamBuster exists so neither of those emails ever lands in an inbox again, without the sender first proving they’re real.

Take back your inbox.

It’s free, it’s simple, and it works on every device that checks your inbox.

Protect your inbox — it’s free