Exclaimer Cloud Signatures

Welcome

If your organisation is subscribed to Exclaimer with Microsoft 365 and wishes to use Client-Side signatures, the deployment options are found below. Please select the one suited best to your environment or deployment method and follow the installation instructions.

Outlook Add In (recommended)

Suitable for

Desktop Outlook and OWA

Individual, Group or Full Tenant deployments from the Microsoft 365 admin console.

Version

1.23.1

Requirements

Software:
  • Windows 10 or above
  • Outlook for Microsoft 365*
  • Outlook Web
  • Office for macOS 16.64 (22081401)
  • Microsoft 365 Mailbox
Permissions (Per User):
  • No specific permissions
Permissions (All Users):
  • Microsoft 365 Admin
Install from App Store >
*Minimum version requirement for Outlook on Windows:
  • Microsoft 365 Subscription - Version 2409 (Build 18025.20000)
  • Retail Perpetual Outlook 2016 and later - Version 2501 (Build 18429.20132)
  • Volume-licensed perpetual Outlook 2024 - Version 2408 (Build 17932.20222)

Installation

To allow your users to apply signatures using the Outlook Add-in please install the add-in through the Exchange Admin Center.

Full installation instructions can be found here

We recommend you verify that your organization's network security policies permit access to the ports and URLs used by Exclaimer. See Ports and URLs used by the Exclaimer Outlook Add-In for more info.

Desktop Agent (Windows)

Suitable For

Desktop Outlook on Windows machines only.

Local installation, CMD Script or Group Policy.

Version

1.19.25027.00002

Requirements

Software:
  • Windows 10 or above
  • Outlook 2016 or above
  • .NET Framework 4.6.2 or above


Permissions (Per User):
  • Local Installation Rights
Permissions (All Users):
  • Domain Administrator (MSI Only)

Choose Your Installation Method


Click-Once Installation (Recommended for Individual Users)

The Click-Once installer is the easiest way to install the agent for a single user. It automatically downloads and installs the agent with minimal setup.

  • Best for: Individual users or small teams who need a quick installation.
  • Installation Guide: Follow the step-by-step instructions in our installation guide.

MSI Installation (For IT Administrators & GPO Deployment)

The MSI package is designed for IT administrators who need to deploy the agent across multiple users using Group Policy Object (GPO) or other enterprise deployment methods.

  • Best for: IT teams managing multiple users in a corporate environment.
  • Installation Guide: Follow the step-by-step instructions in our installation guide.

We recommend you verify that your organization's network security policies permit access to the ports and URLs used by Exclaimer. See Ports and URLs used by the Exclaimer Cloud Signature Update Agent for more info.