Signatures users cannot break
The assigned signature is applied automatically instead of relying on each user to configure Outlook correctly.
Microsoft 365 email signature management
Microsoft 365 email signatures, enforced automatically.
Centralized, server-side email signature management for Microsoft 365 Commercial, GCC, and GCC High. No Outlook add-ins or endpoint agents. Cloud-hosted by us—or fully Self-Hosted inside your own environment.
- Administrators control signatures centrally.
- Users keep sending from their normal email clients.
- The correct signature is applied after send.
- Fully Self-Hosted deployment is available.
For administrators
Control every signature from one place
Create and publish approved templates, assign them to the right people, use directory and organizational attributes, and preview the effective result before rollout. Changes happen in Sigora—not on individual endpoints.
Explore the product- Create and publish
Build approved Base Templates and reusable Modules.
- Assign
Target users, groups, and domains.
- Preview
Check the effective signature and resolved attributes.
- Enforce
Apply the approved result automatically after send.
What changes with Sigora
Consistent signatures without endpoint management
Manage everyone centrally
Control branding, templates, assignments, images, and organizational information in Sigora.
Works wherever users send
Server-side enforcement does not depend on a particular Outlook installation, endpoint agent, or add-in.
Multiple Microsoft 365 tenants. One Sigora deployment.
Manage connected Commercial, GCC, and GCC High tenants together, without an additional per-tenant licensing charge.
How it works
Users send. Sigora applies the signature. Microsoft 365 delivers.
Sigora works in the configured outbound mail flow, after the user sends and before Microsoft 365 completes delivery.
1
Microsoft 365
The user sends an outgoing message from their normal email client.
2
Sigora
The appropriate signature is resolved and applied server-side.
3
Microsoft 365
The message returns to Microsoft 365 and continues to final delivery.
Deployment
Run Sigora in our infrastructure or yours.
Choose who should operate the platform. Both approaches include the same Sigora product capabilities and support Commercial, GCC, and GCC High.
Sigora-managed
Cloud-Hosted
Sigora operates the hosting, updates, availability, and day-to-day infrastructure. Dedicated cloud environments are available by custom quote.
Customer-controlled
Self-Hosted
Run Sigora entirely inside infrastructure your organization controls—ideal when message processing should not be routed through another vendor's cloud.
GCC High and security
Your email does not become our data.
In Cloud-Hosted deployments, messages are processed in transit and not persistently stored during normal processing. With Self-Hosted Sigora, message processing runs in infrastructure you control, so email does not need to traverse Sigora-operated processing systems to receive a signature.
Commercial, GCC, and GCC High
Server-side enforcement
No persistent message-body or attachment storage
mTLS-secured Microsoft 365 mail routing
Sigora can support an organization's technical design for regulated environments, but it does not by itself make an organization compliant or place the service inside a government authorization boundary.
Pricing preview
Straightforward per-user pricing
The same base pricing applies to Microsoft 365 Commercial, GCC, and GCC High. Annual billing is shown below; dedicated Cloud-Hosted infrastructure is quoted separately.
View PricingCloud-Hosted$3per user / month, billed annually
Self-Hosted$2per user / month, billed annually
Have a question about your environment?
Ask us about Microsoft 365, GCC or GCC High, deployment requirements, pricing, or whether Sigora fits your organization. A technical evaluation is available when you are ready for a deeper review.