Email spoofing ends here.

Post-quantum DKIM signing with Ed25519 + IBM Quantum entropy. Every email from your domain carries a cryptographic signature that spoofed emails cannot forge.

$2.9 billion lost to BEC attacks in 2023 (FBI IC3). Don't be next.

Protect Your DomainSee How Easy

30 seconds to quantum-sign your emails

1

Add Domain

Register your domain. We generate an Ed25519 key pair seeded with quantum entropy.

2

Add DNS Record

Copy one TXT record to your DNS provider. Works with Cloudflare, Route53, GoDaddy, Namecheap.

3

All Email Signed

Every outbound email carries a quantum DKIM signature. Spoofed emails fail verification instantly.

Type: TXT
Host: quantum1._domainkey.yourdomain.com
Value: v=DKIM1; k=ed25519; p=MCowBQYDK2VwAyEA...

This is the only DNS change you need. One record. Done.

Quantum vs Standard DKIM

RSA-2048 DKIM (standard)

Uses 2048-bit RSA keys — breakable by quantum computers using Shor's algorithm. Most email providers still use RSA. Harvest-now-decrypt-later attacks already underway.

Ed25519 + Quantum (Mail Seal)

Ed25519 signatures seeded with IBM Quantum hardware entropy. 64x smaller keys than RSA-2048. Faster signing. Post-quantum resistant when combined with ML-DSA (FIPS 204).

Pricing

Starter
Free
  • 1 domain
  • Email verification only
  • Spoof detection alerts
  • Domain health scoring
Get Started
Protect
$29/mo
  • 5 domains
  • Quantum DKIM signing
  • Ed25519 key generation
  • Key rotation
  • DMARC policy generator
Start Free Trial
Enterprise
$199/mo
  • Unlimited domains
  • Webhook alerts
  • SIEM integration
  • Domain reputation API
  • Priority support + SLA
Contact Sales