End BEC attacks with cryptographic email authenticity proofs.
Hash-chain per email thread
Detect spoofed executive emails
DKIM + MIP dual verification
Detect content modifications
Cryptographic proof of origin
Stamp all C-suite outbound email to prevent CEO fraud and wire transfer scams targeting finance teams.
Create tamper-evident records of attorney-client communications that serve as court-admissible evidence.
Ensure wire transfer instructions, account changes, and payment authorizations are cryptographically verified as authentic.
Add the SMSLY Email Stamping plugin to your email system — supports Exchange, Gmail, and any IMAP/SMTP provider.
Every outbound email is automatically stamped with a cryptographic proof linking it to your verified sender identity.
Recipients can verify any stamped email with one click. Unstamped emails from stamped senders trigger fraud warnings.