Design Once. Deploy to Every Mailbox.
SignatureForge is enterprise email signature management built on a simple idea: your price should not go up every time you hire someone. Flat-fee pricing, full Microsoft 365 and Google Workspace support, and a visual designer that makes branded signatures effortless.
Professional Email Signatures Without the Headache
SignatureForge is a centralised platform for designing, managing, and deploying email signatures across your entire organisation. Instead of relying on individual employees to format their own signatures — leading to inconsistent branding, outdated contact details, and missing legal disclaimers — SignatureForge lets you take control from a single dashboard.
You design your signature templates using a visual editor. You map those templates to departments, roles, or individual users. Then you deploy. Every outgoing email from your organisation carries a consistent, professional, on-brand signature — without anyone having to touch their mail client settings.
It works natively with Microsoft 365 and Google Workspace, the two platforms that cover the vast majority of business email worldwide. There is no agent to install, no client-side software, and no browser extension. SignatureForge handles deployment at the mail transport level, so signatures are applied regardless of whether the sender is on Outlook, the web client, or a mobile device.
Built for IT Teams and Brand Managers
SignatureForge is designed for organisations that care about brand consistency in their outbound communications but do not want to spend a disproportionate amount of time or money achieving it.
- IT administrators who manage mail environments and need a reliable, low-maintenance way to enforce signature policies across hundreds or thousands of mailboxes.
- Marketing and brand teams who treat every email as a branding touchpoint and want pixel-perfect control over how the company presents itself.
- Finance and procurement teams tired of watching their email signature budget scale linearly with headcount.
- Growing companies that need a solution today that will not penalise them financially as they grow tomorrow.
Three Steps to Consistent Signatures
No agents to install, no browser extensions, no training required. Connect your mail platform, design your templates, and deploy.
Connect Your Mail Platform
Authenticate with Microsoft 365 or Google Workspace using secure OAuth. SignatureForge reads your directory to pull in users, departments, and contact details automatically. No CSV uploads or manual entry needed.
Design Your Signatures
Use the visual template editor to build signatures that match your brand. Add logos, social links, legal disclaimers, and promotional banners. Assign different templates to different departments or roles.
Deploy to All Mailboxes
Push signatures to your entire organisation with a single action. Signatures are applied at the transport level, ensuring consistency across Outlook desktop, Outlook web, mobile clients, and third-party apps.
Everything You Need, Nothing You Don't
SignatureForge focuses on doing one thing well: getting the right signature onto every email, every time.
Visual Template Editor
Design signatures visually with a drag-and-drop editor. No HTML knowledge required. Preview exactly how signatures will render across mail clients before deploying.
Department Rules
Assign different templates to different teams. Sales gets a template with a booking link. Legal gets one with compliance disclaimers. HR gets one with career page links.
Secure OAuth Integration
Connect to Microsoft 365 and Google Workspace through standard OAuth flows. No stored passwords, no service accounts with excessive permissions. Your credentials stay with your identity provider.
Cross-Client Consistency
Signatures render correctly across Outlook desktop, Outlook web, Gmail, Apple Mail, and mobile clients. No broken layouts, no missing images, no format corruption.
Promotional Banners
Add time-limited banners to signatures for campaigns, events, or announcements. Schedule them in advance and let them automatically activate and expire without manual intervention.
Legal Compliance
Append legally required disclaimers to outgoing mail. Configure different disclaimers for internal versus external recipients, or by sender department. Meet regulatory requirements without cluttering every email.
Flat-Fee Pricing. No Per-User Charges.
The email signature management market has a pricing problem. The established players — Exclaimer, CodeTwo, Crossware, Rocketseed — all charge per user, per month. That means your email signature cost scales linearly with your headcount. Hire ten people? Your signature bill goes up. Onboard a seasonal workforce? Your bill goes up again.
SignatureForge takes a fundamentally different approach. You pay a flat fee based on your plan tier, not based on how many mailboxes you have. Whether your organisation has 50 users or 5,000, the price stays the same. Your email signature tool should not penalise you for growing your business.
This is not a loss-leader or a temporary promotion. Flat-fee pricing is a structural decision baked into the product from day one. The cost of deploying a signature to one more mailbox is negligible, so we do not charge for it.
| Scenario | Per-User Tools | SignatureForge |
|---|---|---|
| 50 users | $100–$200/mo | Flat fee |
| 200 users | $400–$800/mo | Same flat fee |
| 500 users | $1,000–$2,000/mo | Same flat fee |
| 1,000 users | $2,000–$4,000/mo | Still the same flat fee |
| Cost trajectory | Scales with headcount | Stays predictable |
Why SignatureForge Exists
SignatureForge was born out of a real operational frustration. Managing email signatures across a multi-country organisation — with different brands, different legal requirements, and different languages — is a surprisingly painful problem. The existing tools on the market all solve the technical challenge well enough, but they all share the same pricing model: per user, per month, forever.
For a growing organisation, that model turns a simple branding tool into an unpredictable recurring expense. We wanted a tool where the cost question was settled on day one and never revisited. We wanted to deploy signatures to every mailbox in our organisation without doing mental arithmetic about whether a new hire justifies the incremental cost.
So we built it. SignatureForge is not a side project or a proof of concept. It is a fully operational platform, live at signatures.grimmgear.com, handling real email signature deployments for real organisations. It reflects a broader GrimmGear philosophy: build software that solves a genuine problem, price it fairly, and do not charge people more for doing the same thing at a larger scale.
Ready to Take Control of Your Email Signatures?
See SignatureForge in action. Try the interactive demo with no signup required, or visit the live platform to get started.