Can your contact prove that this email really came from you?
STEGA TRUST certifies every sender's identity.
A solution natively integrated into your Microsoft 365 environment.
STEGA TRUST integrates natively into your Microsoft 365
Email identity spoofing has become undetectable
Identity spoofing through mailbox compromise bypasses every protection in place. The recipient remains sole judge – and can get it wrong.
A compromised account passes every filter
When the attacker sends from your contact's real mailbox, anti-spam filters and sender authentication checks detect nothing abnormal. The email is technically legitimate.
Your contacts can't tell a real email from a fake one
A significant share of professionals still click on well-contextualised fraudulent emails, for lack of a reliable signal to tell them apart.
You can't prove you didn't send it
Current email standards provide no proof of sender identity. STEGA TRUST fills that gap.
Three invisible steps, one mathematical certainty
You write
You write your email as usual in Outlook. No change to your habits.
STEGA TRUST seals it
STEGA TRUST attaches a unique proof of identity to your email in the background. Your content stays on your device.
The recipient verifies
The recipient sees a certification badge in their Outlook, or can verify it online.
Privacy by design. Your content stays in your Outlook.
- Sender verified
- Content intact
- Timestamp 25/08/2026 10:54:08
Four critical situations where STEGA TRUST helps expose fraud
Whether you're a school, a notarial office or a professional firm, STEGA TRUST protects your most sensitive daily communications.
Your clients receive an email demanding an urgent payment, with new bank details. The email seems to come from your company. They pay.
The recipient notices the usual STEGA TRUST badge is missing. They check. The recipient is alerted before the transfer.
A client receives an email with new bank details for their transaction balance. The sender looks legitimate. They transfer €200,000.
The sender's identity is cryptographically certified. Any impersonation lacks the STEGA TRUST badge. The fraud is exposed instantly.
An employee receives an email that appears to come from management (the classic CEO fraud), demanding an urgent transfer or sensitive action. They comply.
Every strategic internal email is certified. CEO fraud attempts lose all credibility – a missing badge is an instant red flag.
A student, client or staff member receives an email that appears to come from your organisation, asking them to confirm credentials, ID or bank details for a "regulatory update". They comply without hesitation.
The missing badge on this email immediately alerts the recipient. No sensitive data reaches the attacker. Your organisation protects its contacts against identity spoofing.
A unique, holistic approach
| Criterion | STEGA TRUST | Classic anti-spam | Standard authentication |
|---|---|---|---|
| Verifies the sender domain identity | ~ | ✗ | ✓ |
| Certifies the individual sender | ✗ | ✗ | |
| Qualified eIDAS timestamp by a QTSP | ✗ | ✗ | |
| Respects content confidentiality | ~ | ✓ | |
| Trust badge visible to the recipient | ✗ | ✗ |
STEGA TRUST doesn't replace your current solutions. It fills the trust layer that other tools don't cover.
Three essential pillars
Timestamp certified by a QTSP
European cryptographic standards with evidential value, recognised across all 27 EU member states.
Privacy by design
Your emails stay on your device. Local computation, zero content sent to STEGA TRUST.
French company
STEGA TRUST is a French-law company, subject to the GDPR.
Everything you want to know
Request a demo
See live how STEGA TRUST certifies your email identity in just a few minutes.