Individual deployment of the signature preview add-in

CodeTwo Email Signatures for Office 365 Add-in is used to preview the server-side signatures added to users’ emails by the CodeTwo Email Azure Service. The signature previews are displayed in Outlook's compose message window. The add-in can be used with desktop versions of Microsoft Outlook (including Outlook for Mac) and Outlook on the web (OWA).

The add-in is installed per Microsoft 365 (Office 365) user, not per device. This means that it will work in Outlook and OWA on any device the user signs in with. The Outlook Web Add-in technology provided by Microsoft pushes signatures to Outlook and OWA - you don't need to install any agents or COM/EXE software on your email client.

CodeTwo Email Signatures for Office 365 Add-in can also be deployed individually by Microsoft 365 users. To install it, each user needs to follow the steps described in this article. The deployment differs slightly depending on the user interface of your Outlook on the web:

If you are a global admin of your Microsoft 365 organization, you can deploy the add-in centrally via the Microsoft 365 admin center to all or selected users/groups. Learn more

Important

CodeTwo Email Signatures for Office 365 Add-in can only preview server-side signatures (in server-side mode and combo mode). If you are only using client-side mode, do not install this add-in.

This add-in does not insert email signatures directly into your messages while you are composing them. If you need that functionality, you should use the client-side mode and a different add-in.

The new Outlook on the web (updated UI)

To start the deployment, log in to Microsoft 365 (Office 365) and open Outlook. If your Outlook UI looks as shown in Fig. 1., then you use the new user interface (if it looks different, see this section). To install the CodeTwo Email Signatures for Office 365 Add-in in the new Outlook, you need to open the message compose mode by creating a new message or replying to an existing one. In the compose window, expand the bottom menu (as shown in Fig. 1.) and click Get Add-ins.

The new Outlook on the web - Get Add-ins
Fig. 1. How to get add-ins in the new Outlook on the web.

Choose My add-ins from the menu on the left, click + Add a custom add-in and select Add from URL (Fig. 2.).


Fig. 2. Adding a custom add-in from a URL.

In the pop-up window that shows (Fig. 3.), enter the following address:

https://emailsignatures365-addin.codetwo.com/InstallApp

ESIG for O365 Add private Add-in
Fig. 3. In this window, the URL of the add-in needs to be provided.

Click OK and Install. When the installation is complete, the CodeTwo Email Signatures for Office 365 Add-in will be displayed in the My add-ins section. It will also be available from the Outlook on the web's bottom menu in the compose mode (Fig. 4.). You can now use the add-in to preview email signatures as you type your messages. Learn how to use this feature:

Info

The signature preview add-in is deployed per Microsoft 365 user, not per machine, so it will automatically appear in both Outlook and Outlook on the web (soon also on mobile clients).

ESIG 365 signature preview - new OWA 1
Fig. 4. Opening the signature preview pane.

Outlook on the web (classic UI)

First, log in to your Microsoft 365 (Office 365) and access your OWA. If your Outlook UI resembles that in Fig. 5., then you use the classic UI (if not, see this section). To install the CodeTwo add-in in the classic Outlook on the web, click the Settings button and select Manage add-ins (Fig. 5.).

Outlook on the web - classic UI - Manage add-ins
Fig. 5. Accessing the add-in settings in the classic version of Outlook on the web.

Select My add-ins from the left menu, click + Add a custom add-in and select Add from URL (Fig. 6.).

ESIG for O365 add custom add-in OWA
Fig. 6. Adding a custom add-in.

A new window opens (see Fig. 3.). Enter the following URL:

https://emailsignatures365-addin.codetwo.com/InstallApp

Click OK and then Install. When the installation is completed, the CodeTwo Email Signatures for Office 365 Add-in will be displayed on the Add-Ins list (Fig. 7.).

Info

The signature preview add-in is deployed per Microsoft 365, not per machine, so it will automatically appear in both Outlook and Outlook on the web (soon also on mobile clients).

ESIG for O365 OWA Add-Ins list
Fig. 7. CodeTwo Email Signatures for Office 365 Add-in after successful installation.

Now, when composing an email in Microsoft Outlook or OWA, the user can display the add-in pane (Fig. 8.) with a preview of the signature that will be added to this email (by CodeTwo Email Azure Service) after the user sends it.

ESIG for O365 signature preview OWA 2
Fig. 8. The signature preview pane is displayed next to the reading pane (OWA).

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