Data Sovereign Email Signatures and Out-of-Office Replies
Unified Outlook branding everywhere – with zero external data exposure
Trusted worldwide and proven in high-security environments: The free and open-source Set-OutlookSignatures and the Benefactor Circle add-on turn email signatures and out-of-office replies into a centrally managed business asset — without external data transfer.
By leveraging Microsoft Roaming Signatures and our own direct-to-mailbox technology, we provide the world's only sovereign, native-sync experience that works across all Outlook editions and platforms — Windows, Mac, iOS, Android, Web, Classic and New Outlook, cloud and on-prem in perfect harmony.
Used by security‑conscious and brand-aware organizations worldwide. See how we compare to alternatives and review our transparent, non-renewing pricing.
Organizations use our ecosystem to enforce 📣 dynamic branding, 🏛️ administrative governance, and 🧭 cross-platform data sovereignty — all without changing how users work.
Schedule a session with our team to see how the solution adapts to your specific organizational structure, technical setup, and compliance requirements.
Schedule Interactive Demo Ideal for Security, IT, and Marketing leadershipFollow our 3-step process to deploy your first signatures in minutes. Peer-reviewable and production-ready.
Try it Yourself 100% Free & Open Source CoreOur modular architecture delivers capabilities no cloud relay solution can match. Go beyond static directory attributes by ingesting data from any source — APIs, LDAP, databases, files — and tailoring it with unlimited custom logic.
The Benefactor Circle license funds the open-source mission, ensuring the core engine remains free and peer-reviewable for the global community.