More features for your business
The Benefactor Circle add-on enhances the free and open-source Set-OutlookSignatures with great additional possibilities for your company.
Used by security‑conscious and brand-aware organizations worldwide. See how we compare to alternatives and review our transparent, non-renewing pricing.
Get a trial license, request a quote
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 CoreAfter setting up the free and open-source Set-OutlookSignatures using the Quickstart guide and configuring it to your needs, you are ready to take the next step:
Trial licenses are limited to 14 days runtime, a maximum of 20 mailboxes, and can not be extended or re-issued.
The trial period starts when we create and submit the trial version, not with you using it for the first time (that's not possible as our software does not phone home).
Upgrading to the full version, adding more mailboxes and renewing a license is quick and straightforward:
You will receive a quote shortly. You double-check it, we send the invoice and you can start the payment process.
We send you the download and usage instructions for your new license as soon as we receive the full invoice amount.
Set-OutlookSignatures is and will always be free. What began as a technology demonstrator is now the most secure and versatile open-source tool for managing email signatures. Learn more about the story behind the code.
The Benefactor Circle add-on unlocks advanced features — for just EUR 0.25 per mailbox/month (EUR 3.00 per year). Billed annually, no auto-renewal.
The add-on is an investment that pays off from day one, certainly for you as well!
Facts, not guesswork: Calculate your specific savings in just five minutes with our business case.
Thanks to its unique features and exclusive manufacturer availability, direct procurement in compliance with legal requirements is generally possible without a public tender.
Also consider the total cost of ownership (TCO) over several years. Some competitors include automatic annual price increases of 8% or more in the fine print.
| Mailboxes (1 year) Examples. Buy any amount. |
Set-OutlookSignatures with Benefactor Circle add-on |
Competitor A | Competitor B | Competitor C |
|---|---|---|---|---|
| 100 Mailboxes | 🟢 EUR 300 | 🔴 approx. EUR 1,600 | 🟡 approx. EUR 1,300 | 🔴 approx. EUR 1,600 |
| 250 Mailboxes | 🟢 EUR 750 | 🔴 approx. EUR 4,000 | 🟡 approx. EUR 2,700 | 🔴 approx. EUR 3,600 |
| 500 Mailboxes | 🟢 EUR 1,500 | 🔴 approx. EUR 8,000 | 🟡 approx. EUR 4,400 | 🟡 approx. EUR 6,200 |
| 1,000 Mailboxes | 🟢 EUR 3,000 | 🔴 approx. EUR 15,700 | 🟡 approx. EUR 8,700 | 🟡 approx. EUR 10,500 |
| 10,000 Mailboxes | 🟢 EUR 30,000 | 🔴 approx. EUR 110,000 | 🟡 approx. EUR 65,000 | 🟡 approx. EUR 41,000 |
Each mailbox using Benefactor Circle features requires a license, regardless of the mailbox type (user, shared, etc.).
Active licenses include free version upgrades and prioritizing your support requests. Support is available separately, see 'Get support and contact us' for details.
Our pricing for the Benefactor Circle add-on is based on efficient, direct procurement processes. As a general rule, collaboration with external procurement service providers also runs smoothly.
At the same time, our long-standing project experience shows that certain procurement models or configurations with specific external service providers systematically lead to redundant administrative overhead. This typically manifests as up to an 8-fold increase in communication effort and up to a 2.5-fold increase in processing turnaround times.
Since these effects have occurred consistently over the years — independent of project content or complexity — while producing completely identical professional results and delivered artifacts across all phases, they are classified as purely structural and process-related.
To ensure transparency, predictability, and a fair allocation of costs based on causation, a flat processing fee equal to one man-day will be charged per procurement transaction in these configurations, in accordance with our Professional Support Terms. This regulation represents a standardized treatment of the corresponding procurement scenarios and applies regardless of the actual effort involved in individual cases.
Alternative procurement channels (such as direct purchasing) as well as collaboration with procurement service providers that did not cause these effects in the past remain unaffected by this regulation.
The Benefactor Circle add-on is not a "nice to have" — it is a small investment that pays for itself immediately.
Any realistic business case for email signature management comes down to three questions:
The first two points depend heavily on your organization and are hard to quantify precisely. The third one, however, is very easy to calculate.
Let’s assume a realistic average cost of EUR 60,000 per employee per year (including taxes, social security, and overhead) for about 1,800 working hours. That equals roughly EUR 0.55 per minute of employee time.
Now consider the effort required to keep signatures up to date:
Example calculation:
Cost per minute × changes per year × minutes per change × number of signatures × number of clients
0.55 × 2 × 3 × 2 × 1 = EUR 6.60 per user and year
That means: Manual signature management already costs EUR 6.60 per user and year — compared to just EUR 3.00 for a centrally managed solution with Set-OutlookSignatures and the Benefactor Circle add-on.
And this calculation still ignores the biggest cost drivers:
In short: The Benefactor Circle add-on pays for itself immediately — and then continues to save money, reduce risk, and strengthen your brand with every email sent.
Each Benefactor Circle license is bound to an Active Directory or Entra ID group, called a license group, with a defined maximum number of members. For data protection reasons and ease of administration, licensing is not bound to specific mailboxes ("named users"), but only to a group with a maximum amount of members.
For most environments, only one license group is needed. If you want to define multiple groups, one license group per Active Directory DNS domain or Entra ID tenant is allowed.
A license group definition consists of three components:
EntraID_<Tenant ID> or EntraID_<Tenant DNS Domain>.corp.example.com, EntraID_example.comS-1-5-21-2998092229-1459889137-3613942852-2617, f3f0611a-7bbe-4717-89c3-b967caf6922a478, 16000The example values given above result in the following license groups:
corp.example.com, S-1-5-21-2998092229-1459889137-3613942852-2617, 478EntraID_example.net, f3f0611a-7bbe-4717-89c3-b967caf6922a, 16000-GraphOnly true parameter, create the group in Entra ID: EntraID_<Tenant DNS Domain>, <Entra ID object ID of the license group>, <Number Of Licenses><Active Directory DNS domain name>, <SID of the license group>, <Number Of Licenses>-GraphOnly true parameter, create a group in your Active Directory and make sure it is synchronized with Entra ID: <Active Directory DNS domain name>, <SID of the license group>, <Number Of Licenses>EntraID_<Tenant DNS Domain>, <Entra ID object ID of the license group>, <Number Of Licenses> (which equals using the -GraphOnly true parameter)<Active Directory DNS domain name>, <SID of the license group>, <Number Of Licenses>distinguishedName or dnsDomainName property.If any of these steps fails, the mailbox is not licensed and Benefactor Circle features can not be used for it.
Adding mailboxes mid-term is pro-rated for the remaining months (minimum invoice amount applies).
Moving licenses means that the total number of licensed mailboxes does not change, but their distribution across license groups. This can, for example, be necessary due to Active Directory consolidations.
Shifting licenses between license groups is possible once per license period. If more license shifts are required, additional licenses have to be acquired temporarily, the total number of licenses can then be reduced when the new license period begins.