Install Exclaimer Outlook Add-in (Preview channel) – Exclaimer Knowledge Base

We recommend: Only use the Exclaimer Outlook Add-in (Preview channel) for testing new features. Since updates may occasionally cause minor issues, we advise limiting usage to a select group of users. For more information on the latest releases, see the Exclaimer Outlook Add-in Version Release History.

Description

The Exclaimer Outlook Add-in feature lets you choose the most appropriate email signature whilst you compose your email in Outlook, from the list of all your signature templates. The signature templates can be used for different messages, for example, to represent different marketing brands.

This article guides you through the process of how you can install the Exclaimer Outlook Add-in for a single user or deploy it to your Microsoft 365 tenant.

Pre-requisites

Before you install the Exclaimer Outlook Add-in, make sure you have:

Mailbox type:

Microsoft 365 mailboxes only

Windows

Outlook on Windows (Microsoft 365 Subscription) [version 2409 (Build 18025.20000)]
Outlook on Windows (Retail Perpetual) [version 2501 (Build 18429.20132)]
Outlook 2024 on Windows (Volume-licensed perpetual) [version 2408 (Build 17932.20222)]
Microsoft Outlook Web Access
Microsoft Windows 10, Windows Server 2016 or above

Mac

Outlook on Mac [version 16.89 (24090815) or above]
NOTE: Only the New Outlook interface is supported. Go to Outlook > New Outlook to enable it.

Mobile:

Android: Outlook version 4.2433.0 or above
iOS: Outlook version 4.2433.0 or above

Microsoft 365 Plan

Your Microsoft 365 plan must allow access to deploy Microsoft 365 Apps through Microsoft AppSource. Certain plans, such as Office 365 E2 do not support this.

NOTES:

Do not use the Add-in alongside the Exclaimer Signature Update Agent for Windows, as it can cause inconsistent behavior.
E1 license subscription to Microsoft 365 is not supported.

Please click on the required options listed below to go through the detailed description:

How to find out which Microsoft Outlook version you are running

To find out which Microsoft Outlook version you are running:

Log in to the Outlook Desktop App.
Select File from the ribbon bar.
Select Office Account, then select About Outlook.

_{Outlook Desktop App. Select About Outlook.}

The Microsoft Outlook version is displayed at the top.

_{The Microsoft Outlook version is displayed at the top.}

Deploying Exclaimer Cloud Outlook Add-in to your Microsoft 365 tenant

As a member of the IT team, you can easily deploy signatures to all employees (end-users) within your organization, regardless of their location. The end-user doesn't have to be connected to the network and there is no need to deploy this using the Group Policy, as there is no separate application to manage.

Follow these steps to deploy the Exclaimer Outlook Add-in to your Microsoft 365 tenant:

To complete the steps described below, you will need:
Microsoft 365 Global Administrator credentials

Log on to the Microsoft 365 Portal as a Global Administrator.
Open the admin center.
From the menu sidebar, select Settings then select Integrated apps.

_{From the menu bar, select Settings, then select Integrated apps.}
Select Add-ins.

_{Select Add-ins.}
Select Deploy Add-in.

_{Select Deploy Add-In.}
Select Next.

_{Select Next.}
Select Upload custom apps.

_{Select Upload custom apps.}
Select I have a URL for the manifest file option.
In the space provided, enter the Add-in Manifest URL: https://outlookclient.exclaimer.net/ecosa/preview/manifest.preview.xml

CAUTION! When you enter the URL, do NOT delete 'https://'.

_{Enter the Add-in Manifest URL.}
Select Upload.

A Configure add-in window is displayed.
As required, choose which assigned users you want to have access to Exclaimer Cloud:

- Everyone: Select to assign everyone in your organization access to Exclaimer Cloud.

- Specific users/groups: Select to assign specific users or groups within your organization access to the Exclaimer Cloud Outlook Add-in. Enter a specific user or group name; this is a predictive text field, so any matching users or groups will be displayed as you start to type.

- Just me: Select to assign only yourself, in your organization, access to Exclaimer Cloud.
Select how you wish to deploy the Outlook Add-in:

- Fixed (default): Select to automatically deploy the Outlook Add-in to the assigned users. Users cannot remove the Add-in from their ribbon.

- Available: Select to deploy and make it available to assigned users to install the Add-in themselves.

- Optional: Select to automatically deploy the Outlook Add-in to the assigned users. Users can remove the Add-in from their ribbon.

_{Select which users will have access to the Exclaimer Cloud Preview and how you wish to deploy it.}
Select Next to continue.

A permissions window is displayed.

_{Permissions window.}
Select Save to continue.

The Deploy Exclaimer Cloud - Preview window is displayed.

WARNING! It can take approximately 12 hours to deploy the Exclaimer Cloud Outlook Add-in to all users within your organization.

The users will need to relaunch Microsoft Office for this effect to take place.

_{Deployment in progress.}

A confirmation message is displayed when the Outlook Add-in has been successfully deployed.

_{A confirmation message is displayed when the Outlook Add-in has been successfully deployed.}
Select Next to proceed.

Once the Exclaimer Cloud Outlook Add-in has been successfully deployed, users can start to execute client-side email signatures. Users can find the Exclaimer icon at the bottom toolbar or as an option within the ellipsis () in their Outlook Desktop App.
For more information, see How to use the Exclaimer Cloud Outlook Add-in.