What are fake signups costing you?
Every disposable or fraudulent signup carries a real cost: fraud losses, wasted email sends, support time, abused free-trial credits. Plug in your own numbers below, then check how many are slipping through today.
Your numbers
Rough estimates are fine. This is a directional calculator, not an audit.
Don't know? Most teams that haven't checked guess low. Run a free audit on your real signups instead of guessing.
Fraud losses, wasted email/SMS sends, support time chasing bounced confirmations, free-trial or credit abuse: whatever a bad signup costs you.
Your own assumption for "what if we caught most of it," not a published Mailsurity accuracy figure. Adjust it to match your own risk tolerance.
What this could be costing you
Fake signups / month
160
Estimated monthly cost
$2,400
Estimated annual cost
$28,800
Illustrative savings at 50% catch rate
$1,200
$14,400/yr
These are directional estimates from the numbers you entered, not a guarantee or an audited accuracy claim. The fastest way to see your actual exposure is to check your real signups instead of modeling a guess.
Why fake signups aren't a rounding error
A fake or disposable signup rarely stays free. It can burn a free-trial credit meant for a real customer, trigger a confirmation email that bounces and drags down sender reputation, or turn into a support ticket when a “customer” who was never real disputes a charge. None of that shows up as a line item until you add it up, which is what the calculator above does.
Mailsurity's decision engine is built to act on that cost directly: instead of a plain disposable/legitimate flag, it scores risk and returns an ALLOW / VERIFY / BLOCK decision you can wire straight into your signup flow. See the API reference for the full contract.
Frequently asked questions
Stop modeling the cost. See who's behind it
Paste a list of your real signups and Mailsurity shows how many are disposable, temporary, or fake. No signup needed; the part before the @ never leaves your browser.