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Compare all three Microsoft 365 email-signature platforms →
Scribe and Exclaimer both centralize company email signatures in Microsoft 365. The decision is mainly about the signature delivery model, the breadth of governance and integrations you need, and how much administration your team wants to take on.
Quick recommendation
Choose Scribe if you want a fast Microsoft 365 add-in rollout, signatures users see while composing, and a simple model for teams using Outlook on the web, desktop, iOS and Android.
Choose Exclaimer if your organization needs deeper control over rules, directory data, role-based access, compliance, and server-side signature application across complex environments.
Microsoft 365 deployment
Scribe deploys a client-side Microsoft 365 add-in centrally. A super admin installs it once, and users receive signatures without acting themselves. Scribe says email remains in the organization’s email provider.
Exclaimer can apply Microsoft 365 signatures server-side through Exchange Online mail-flow connectors. Its Microsoft 365 offering also provides client-side functionality where users need to see a signature while composing.
Governance and data
Scribe focuses on centrally installed signatures, reusable templates, marketing blocks, and keeping team details current through connected data sources.
Exclaimer emphasizes enterprise governance: Entra ID synchronization, rules based on user, role, department or recipient, legal disclaimers, audit readiness, and role-based access for teams that share responsibility.
Device coverage and user experience
Scribe’s client-side integration covers Outlook on the web, desktop, iOS and Android. It is a natural fit when users need to see the final signature while composing.
With server-side delivery, Exclaimer can apply signatures after an email leaves Microsoft 365. This is useful for consistent output across different clients and devices, while Exclaimer’s client-side capability can support compose-time visibility when needed.
Pricing and scale
Scribe offers a free tier for up to two users. Its Business tier is for 3–99 users and Enterprise begins at 100 users; it charges for primary addresses that have a signature assigned.
Exclaimer publishes plan information for businesses of different sizes. Compare a current quote with Scribe’s per-assigned-user model for your exact user count and required controls.
Which should you choose?
Pick Scribe for a straightforward, fast-to-deploy Microsoft 365 signature rollout and marketing-oriented team signatures. Pick Exclaimer for larger organizations that prioritize policy control, complex directory-driven rules, security certifications and broad integration requirements.
Run a pilot with real employees and test new messages, replies, shared mailboxes, mobile sending and the signature behavior in your actual clients.
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Last reviewed: September 2026. Product capability, pricing and deployment requirements can change; confirm current details on official Scribe and Exclaimer documentation before purchase.
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If Scribe is the right fit for your Microsoft 365 team, use the Libebox partner link and enter code LIBEBOX at checkout for 30% off your first payment.
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Libebox may earn a commission if you purchase through this link. The recommendation is based on the fit described above.