Knowledge Base

Centralized deployment of the signature preview add-in via Exchange admin center


The CodeTwo Email Signatures for Office 365 Add-in is used to preview server-side email signatures in Outlook when the CodeTwo software is running in server-side or combo mode (learn more about signature modes). If you are looking for information on how to centrally deploy the CodeTwo Signatures Add-in for Outlook that adds signatures directly to the Outlook desktop app, read this article.


You would like to perform centralized deployment of the CodeTwo Email Signatures for Office 365 Add-in by using Exchange admin center.



If you don't want to or cannot deploy the add-in via Microsoft 365 admin center, as described in the User's manual, you can use the Exchange admin center to deploy it to all/selected users in your Office 365 organization.

The deployment needs to be performed by an account that has the Exchange administrator role assigned. Learn more about admin roles in Office 365

To deploy the add-in via EAC, follow these steps:

  1. Log in to Exchange admin center (EAC). On the dashboard, click add-ins, as shown in Fig. 1. You can also access add-in settings from the organization tab on the left menu.

Fig. 1. Accessing add-in settings in EAC.

  1. Click the plus (+) button and selectAdd from URL (Fig. 2.).

Fig. 2. Selecting the location of the add-in.

  1. In the pop-up window that appears, enter the following address:

  2. Click Install. When the installation is completed, CodeTwo Email Signatures for Office 365 Add-in will be shown on the add-ins list (Fig. 3.). Note that by default, the new add-in is disabled.

Fig. 3. Initial configuration of the CodeTwo Email Signatures for Office 365 Add-in.

  1. To enable the add-in, you need to double-click it or use the edit (pencil icon) button, choose the option that best matches your preferences (Fig. 4.), and save the configuration. It might take a while (even 24 hours) for the add-in to be deployed to all users in your Office 365 tenant.

Fig. 4. The Add-in availability options.


If you choose the Optional, disabled by default option, each Office 365 user will have to turn on the add-in manually.

Once the add-in is deployed to Office 365 users, they will be able to display the add-in pane with a signature preview while composing emails in Microsoft Outlook or OWA (Fig. 5.). See the user's manual to learn how to preview email signatures in Outlook/OWA.

Fig. 5. The signature preview pane in Outlook on the web (OWA).