Fake invoices and wire instructions
Business email compromise cost victims $2.77 billion in 2024, according to the FBI's Internet Crime Report. The usual trick is an email that looks like it came from someone the victim already trusts, like you.
Free email impersonation check
If your domain isn't locked, anyone can send an email that shows your business name and address: a fake invoice, or "new" wire instructions to your clients. The same gaps push your real emails into spam. We check it for free, then fix it for you.
Free. No signup. We only read public DNS records, the same ones every email server checks.
Business email compromise cost victims $2.77 billion in 2024, according to the FBI's Internet Crime Report. The usual trick is an email that looks like it came from someone the victim already trusts, like you.
Since 2024, Gmail and Yahoo require every sender to pass SPF or DKIM, and larger senders to publish DMARC. Microsoft added similar rules for Outlook.com in 2025. Quotes, invoices and reminders that fail these checks can be filtered or bounced.
Scammers also register domains one letter off from yours, like smithlavv.com for smithlaw.com. Our check tests the common variations and tells you if any of them can send email.
Ten seconds, right here. You see exactly what's open and why.
We turn on signing with your email provider and publish the right records with your domain host. Nothing changes without your OK, and we never ask for your passwords.
We watch the reports so your invoices, newsletters and website forms keep working, then switch on full blocking.
You get a before-and-after report showing an A grade, and you can rerun this check any time to confirm it.
$297 one-time, per domain
$29 per month, per domain
Partner pricing
You pay nothing up front. We do the setup with you, and you get the invoice when your domain scores an A on our check. There's nothing to argue about: the check reads public records, and anyone can run it.
Up to three DNS records at your domain host (SPF, DKIM and DMARC) and one setting in your email admin console that turns on signing. We don't touch your website, your mailboxes or your passwords.
No. We do the setup on a screen-share while you stay logged in, or you add us as a temporary delegate on your domain account and remove us when we're done.
Not the way we do it. We start in monitor-only mode, use the reports to find every service that sends email for you (invoicing, CRM, newsletters, website forms), add them, and only then switch on blocking. If anything legitimate fails, we fix it the same business day.
Your provider protects your mailbox, not your domain. Whether strangers can send email pretending to be @yourbusiness.com is controlled by records at your domain host, and most businesses have never set them.
Nobody can honestly promise that. Lockdown stops scammers from sending email using your exact domain, and Guard warns you about look-alike domains. It can't protect a mailbox whose password gets stolen, so turn on two-step verification for every email account.
SpoofShield is run by Tristin in Hallandale Beach, Florida. You deal with a real person, not a ticket queue.
Every domain that sends email needs its own lock. Domains you own but don't use for email need a "no mail" lock too, because unused domains are easy to abuse. You can buy several at checkout.
After your domain scores an A on our check. You get one invoice for Lockdown; Guard is billed monthly after that and you can cancel any time.
Yes. It reads public DNS records, the information every email server in the world looks at. The lookups run in your browser through Cloudflare's and Google's public DNS services. We don't store the domains you check unless you send us the form.