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Exclaimer: Centralized Email Signature Management

by EXCLAIMER LTD

(1471 ratings)

Centralize and automate email signature management for consistent branding and compliance.

Ensure consistent, compliant, automated email signatures for your whole organization.
Note: For the Exclaimer add-in for Outlook, please go to AppSource.

Why Exclaimer

Exclaimer is a powerful solution designed to simplify and automate email signature management for organizations of all sizes. It enables businesses to ensure consistent, compliant, and professional email signatures across all devices, including desktops, mobiles, and tablets. With Exclaimer, IT teams can centralize email signature management, ensuring brand consistency and compliance with legal and corporate standards.
This solution is ideal for IT administrators, marketing teams, and organizations using Microsoft 365 who want to eliminate the hassle of manual email signature updates. Exclaimer allows marketing teams to run targeted campaigns with signature banners, while IT retains full control through role-based permissions. The drag-and-drop editor makes it easy to design professional signatures without requiring coding skills. Exclaimer addresses the common challenges of managing email signatures at scale, such as formatting inconsistencies, outdated user details, and compliance risks.
With features like directory sync with Microsoft Entra ID, SOC 2 Type II certification, and 99.99% uptime, Exclaimer ensures secure, scalable, and reliable email signature management for over 80,000 organizations worldwide.

Activate your Exclaimer Free Trial.


Core benefits and features

  • Centralized email signature management: Design and deploy email signatures for every user from one web portal.
  • Easy email signature design: Create email signatures with a simple drag-and-drop editor. No coding required.
  • Consistent across all devices: Apply the same signatures on desktop, mobile, or tablet.
  • Directory sync: Auto-populate signatures with user details from Microsoft Entra ID.
  • Targeted signature campaigns: Apply marketing banners based on specific signature rules such as recipient, sender, or region.
  • Compliance and brand control: Keep legal disclaimers, certifications, and brand elements consistent on every email.
  • Granular access controls: Assign role-based permissions so IT stays in control while other teams update content safely.


Secure and compliant

  • SOC 2 Type II, ISO/IEC 27001, and ISO 27018 certified
  • GDPR, CCPA, and HIPAA compliant
  • 100/100 SecurityScorecard rating
  • Protected with TLS encryption, IPS, firewalls, and DDoS defences
  • Developed with a DevSecOps approach
  • Certified by Cloud Security Alliance (CSA) and Cyber Essentials scheme


Reliability you can trust

  • Hosted across 14 load-balanced Microsoft Azure datacenters in 7 global regions
  • Built-in regional failover for continuity of service
  • 24/7 monitoring with real-time alerts
  • 99.99% uptime guaranteed
  • 24/5 technical support backed by 24/7 AI support for fast answers


How it works

  • Secure integration: Exclaimer connects to Microsoft 365 using secure Exchange Online connectors, processing everything in Microsoft Azure. This gives IT a controlled path for signature handling.
  • Server-side application: Signatures are added as email routes through Exclaimer, so every message gets the right signature on any client or device.
  • Centralized control: Manage email signature designs, user assignments, and permissions from one dashboard.
  • Outlook Add-In (optional): Let users see their signature in Outlook as they write, without changing how signatures are applied. Works alongside server-side deployment for flexibility and compliance.
  • Always up-to-date: User details sync automatically from Microsoft Entra ID, so signatures stay current without manual updates.


Trusted by global brands


Exclaimer is trusted by more than 10 million users across 80,000+ organizations worldwide, including Sony, Mattel, Bank of America, NBC, the Government of Canada, the BBC, and the Academy Awards.

At a glance

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https://catalogartifact.azureedge.net/publicartifacts/exclaimerltd-1036422.exclaimer-0942c01e-1c0a-468e-a34a-6b0d677a67fd/trailer_3006633754170791306_trailer.png
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https://catalogartifact.azureedge.net/publicartifacts/exclaimerltd-1036422.exclaimer-0942c01e-1c0a-468e-a34a-6b0d677a67fd/image8_Signatures.png
https://catalogartifact.azureedge.net/publicartifacts/exclaimerltd-1036422.exclaimer-0942c01e-1c0a-468e-a34a-6b0d677a67fd/image6_Designer.png
https://catalogartifact.azureedge.net/publicartifacts/exclaimerltd-1036422.exclaimer-0942c01e-1c0a-468e-a34a-6b0d677a67fd/image0_MeetingBranding.png
https://catalogartifact.azureedge.net/publicartifacts/exclaimerltd-1036422.exclaimer-0942c01e-1c0a-468e-a34a-6b0d677a67fd/image3_AddIn.png
https://catalogartifact.azureedge.net/publicartifacts/exclaimerltd-1036422.exclaimer-0942c01e-1c0a-468e-a34a-6b0d677a67fd/image5_BrandKits.png
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