Email signatures and out-of-office replies with data sovereignty

Set-OutlookSignatures and the Benefactor Circle add-on

πŸ”— Create value without giving up data sovereignty

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, reusable business asset β€” without external dependencies.

Every email becomes a controlled touchpoint for your brand: up to date, consistent, and fully aligned across the organization.

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Marketing: Unified Brand Control
Enforce consistent branding, dynamic marketing campaigns, and up-to-date contact details on every message.
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IT: Painless Automation
Automate signature deployment and centralize OOF management within minutes, no new consoles to learn. Invisible to employees, zero footprint on clients.
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Legal: Total Data Sovereignty
Remove compliance risks from third-party processors. Total sovereignty, your data never leaves your controlled environment.

No hidden fees, no surprises β€” trusted worldwide in the most hardened environments. Review our transparent pricing and see how we beat the competition.

πŸ”—Experience it in action

See how organizations use Set-OutlookSignatures and the Benefactor Circle add-on to enforce brand consistency, governance, and data sovereignty without changing how users work.

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Cross-Platform Sovereignty
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Dynamic Branding and Marketing
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Administrative Governance

πŸ”—Personal demo

Schedule a personal walkthrough to see how this fits your specific infrastructure and compliance needs.

Expert DemoSee data sovereignty in action

πŸ”—Quickstart

Follow our 3-step process to deploy your first signatures in minutes and create a robust starting point.

Test your signatures – directly and risk-freeFree, Open Source and peer reviewable

πŸ”— The power of the ecosystem

Set-OutlookSignatures and the Benefactor Circle add-on form a unique ecosystem for centrally managed email signatures and out-of-office replies fully under your control.

You get enterprise-grade governance, full data sovereignty, and seamless integration into your existing Microsoft 365 and Exchange environment.

This combination delivers capabilities no other solution offers, made possible by its advanced, modular architecture.
It goes far beyond static directory attributes: You can easily extend it to ingest data from virtually any source β€” including web services, LDAP directories, databases, and files β€” and define fully custom variables tailored to your organization.

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Frictionless Adoption
Easy for IT and marketing to manage, invisible to end users.
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Dynamic Content
Use dynamic data from users, mailboxes, managers, and your own sources.
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Out-Of-Office Replies
Control out-of-office replies centrally, for internal and external recipients.
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Cross-Platform
Works everywhere: All Outlook editions on any platform, on‑prem and in every M365 cloud.
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Enterprise Versatility
Built for real-world Exchange: Shared mailboxes, delegates, roaming signatures, and more.
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Flexible Assignment
Assign signatures by department, role, language, location, time, or any custom rule.
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Zero-Footprint Integration
Everything runs on your existing systems and creates no new dependencies.
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Unsurpassed Data Privacy
Your data never leaves your environment and stays within your established security and governance structures.
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Additional Marketing Channel
Turn email signatures into a powerful, cost-free marketing channel.