Microsoft 365, Exchange, and sovereign self-host

Email signatures you can prove and control

Centrally manage signatures, disclaimers, and campaign banners across your organization - with verifiable provenance, per-tenant encryption only you can unlock, and a mail path that never blocks delivery. Deploy as SaaS, on-premises, or in your own sovereign cloud.

Re: Q3 partnership

Best regards,

Alex Morgan

Director of Partnerships, Northwind

This message and any attachments are confidential and intended for the named recipient only.

Signature applied and verifiable

Verifiable provenance

Recipients can confirm a stamped email genuinely came from you. A trust signal no other signature platform offers.

Sovereign, zero-knowledge data

Per-tenant encryption only you can unlock - not even we can read your data. One-click key rotation, host it in your own cloud.

Auditor-ready compliance

A live posture dashboard that maps your controls to NCA, ISO 27001, and GDPR - evidence your auditors can actually read.

Mail that never stops

We stamp inline but never block delivery. In an outage you might lose a signature, never a message - with automatic recovery.

Opens & engagement analytics

See how recipients engage with your signatures and campaign banners, with privacy controls built in.

Signature Intelligence

Auto-parses inbound email signatures into a searchable, always-current contact directory.

Plus everything you would expect

Recipient-aware signatures

Different signatures by recipient domain, address, or curated list.

Rendering mosaic

Preview templates across 15 real email clients before you deploy.

Campaign & emergency banners

Prepend campaign or urgent banners - platform, tenant, or org scoped.

Reply-aware stamping

No repeated signatures stacking up down a reply thread.

Sent-items stamping

The sender sees the finished signature on their own sent copy too.

Dignity mode

Auto-suppresses banners on condolence or sensitive threads (EN + Arabic).

Deploy SaaS, on-premises, or in your own sovereign cloud. AES-256 per-tenant encryption, MFA, SSO, and a full audit trail. Aligned with NCA, ISO 27001, and GDPR.