Control every email signature in your organization from one secure platform

Simple to deploy, seamless across email platforms and devices — complete signature control, without the headache.

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Save time & resources with automated email signature management

Managing email signatures manually is time-consuming and vulnerable to errors. With Exclaimer, one person can control every signature across the organization, no matter the size.

Sync with your directory

Connect with Microsoft Entra ID, Google Workspace Directory, or Okta keeps signatures up to date using real-time data from your trusted source of truth.

Apply signatures automatically

Use a server-side application to add signatures in Microsoft Azure before emails are delivered—no user interaction required.

Preview signatures as you type

Enable client-side visibility with the Exclaimer Outlook Add-In so users can see their signature while composing emails.

Trusted by 70,000+ companies worldwide

Maintain consistent, professional signatures

Whether you’re a 12-person company or an enterprise with thousands of users, Exclaimer gives you the tools to guarantee professional signatures at scale:

  • Use dynamic logic to tailor signatures based on audience (internal vs. external), department, region, or even CRM lists from Salesforce or HubSpot.

  • Create custom templates for different teams while maintaining consistent brand standards across the board.

  • Set it and forget it. Configure compliant, professional signatures once and let Marketing or HR teams manage campaigns over time — thanks to role-based access controls.

Stay compliant

Meet regulatory requirements with intelligent, automatic disclaimers built into every email. Exclaimer helps you reduce legal risk and meet compliance obligations by automatically appending tailored disclaimers to your email signatures.

Whether you’re navigating GDPR, HIPAA, or industry-specific legislation, you can enforce the right message every time.

  • Add legal disclaimers, confidentiality statements, or disclosure notices to all outbound emails.

  • Use smart rules to show different disclaimers based on sender region, department, or audience.

  • Ensure coverage on every email, with server-side enforcement.

Effortless email signature management, no matter your email platform

Whether you're using Microsoft 365, Google Workspace, or Microsoft Exchange, with Exclaimer you can manage consistent, compliant email signatures at scale.

Microsoft 365

Microsoft Exchange

Google Workspace

See Exclaimer in action

Take control of your organization's email signatures

Why industry leaders choose Exclaimer

Frequently asked questions

What is Exclaimer and how does it work?

Exclaimer is the leading email signature management platform that lets you centrally design, control, and deploy professional signatures across every email sent from your organization.

It integrates directly with Microsoft 365 and Google Workspace to automatically apply consistent signatures — including logos, contact details, legal disclaimers, and marketing banners — without relying on employees to do anything manually.