This guide is for cross-platform deployment using the Xink Add-in through Microsoft 365. Works seamlessly across web-based Outlook, desktop, and mobile clients in the Microsoft 365 environment.
The 365 Add-in (an integrated app) extends Exchange-based services like Outlook by securely integrating advanced email signature capabilities. Hosted by Xink or Microsoft, the add-in communicates with Exchange Online via Exchange Web Services (EWS) and Microsoft Graph, ensuring security and compliance.
Admins can deploy, manage, and control access to the Xink 365 Add-in directly through the Microsoft 365 Admin Center, making it easy to enforce organization-wide email signature policies.
The Add-in will set the new, reply, and optional email signatures, allowing the end-users to see their signatures as they compose the email. In addition, they can select among multiple signatures (shared mailbox signatures, other languages, an internal signature, etc.).
- New Outlook for Windows
- New Outlook for Mac
- Outlook "classic desktop" for Windows
- Outlook "Legacy desktop" for Mac > Learn more.
- Outlook on the web
- Outlook for Android (when using the Manifest version)
- Outlook for iOS
- Outlook on Citrix
- Outlook on Azure Virtual Desktop
- Outlook on RDS
No rerouting of your company emails!
No risk - No privacy concerns.
This article provides a step-by-step guide for installing the 365 add-in within your Microsoft 365 tenant for pilot users or across your entire organization.
There are two Xink Add-in deployment methods:
- Manifest (Xink private store) - RECOMMENDED - Includes Outlook for Android, multi-company functionality and customizable features.
- AppSource (Microsoft public store) - NOT RECOMMENDED - Microsoft enforces limited control over deployment, and it lacks enterprise-level features.
- Verify That Your Email Signatures Are Live
If you need remote help and have 365 admin credentials, we will help you get started on a quick remote session.
Free 1-on-1 implementation (30 min.)
Prerequisites:
Access required: Global Admin, Exchange Admin, and Azure Application Admin can access Integrated Apps and deploy add-ins in Microsoft 365. We recommend using the latest version, 2404 or higher.
1) Deploying the Add-in to your Microsoft 365 tenant (Manifest method)
It works with AAD, AD on-prem, SQL Azure and SQL on-prem.
It works when the UPN/SMTP differs (except for Outlook on Android).
You can modify the XML, e.g., remove the email signature when sending meeting invitations, remove the recipient rule feature, so that the TO email, etc.
A unique feature of the Manifest is that it allows you to modify and target only one company within a multi-company tenant. If you need this functionality, ping our support, and we'll help you adjust the XML file. Thanks.
Free 1-on-1 implementation (30 min.)
Download the manifest from the Xink portal. Preferences > Integration > Microsoft 365 add-in:
Log in to https://admin.microsoft.com/Adminportal/Home?source=applauncher#/Settings/IntegratedApps and choose to Upload custom apps.
Select Upload manifest file. Choose your manifest file and hit Next once validated.
Select the target user group, or you may select the Entire organization if you're deploying for all employees. Please note that nested groups are not supported.
Log in with a Microsoft 365 global admin credential.
The Permissions requested window below may or may not appear. If it does, please Accept.
And then click -> Accept permissions.Note:
If you don’t see the prompt and are redirected to the permissions list, click Next to accept and continue.
Finish the deployment. Note that it may take several hours up to 3 days before an add-in is visible to the users. If installation takes longer than mentioned, please report the issue to Microsoft support.
2) Deploying the Add-in to your Microsoft 365 tenant (AppSource method)
This method requires a Linked Entra ID (Azure AD) connection (AAD).
UPN/SMTP must be the same > We refer to the Manifest version with different UPN/SMTP.
Free 1-on-1 implementation (30 min.)
As a Global Administrator, you can quickly deploy email signatures to every employee (end-user) within your organization, regardless of where they are based. There is no end-user involvement, which reduces IT overhead.
- Log on to the Microsoft 365 Portal as a Global Administrator.
- Open the admin center.
- Under Settings, select Integrated Apps.
- Click Get apps to open the App Store. The Microsoft 365 App Store window is displayed:
- In the search box, type Xink.
- Once the app loads, click Get it now:
- The Confirm to continue window is displayed. Click Get it now to start the deployment process:
- As required, select which assigned users should get updated by the Xink Add-in:
- Just me: Select to assign only yourself to get email signatures updated.- Entire organization: Select to assign signatures to everyone.
- Specific users/groups: Select to assign signatures to specific users or groups (you cannot use nested groups).
Click Next to proceed.
You need to accept permissions for your tenant to use the new app. Click Accept permissions to grant access.
Note:
If you don’t see the prompt and are redirected to the permissions list, click Next to accept and continue.
Once prompted, sign in with your Microsoft 365 as a Global Administrator (be sure to enter the credentials for the correct Microsoft 365 tenant).
Once signed in, you must accept a permissions request for the Xink Add-in by clicking on Accept:
Once you accept the permissions, click Next to proceed.
Now, review your selected settings for the deployment.
Once you have reviewed and are happy with the options selected, click Finish Deployment to complete the deployment process.
Once the deployment is complete, click Done to proceed.
The Integrated apps screen is displayed, listing the Xink app.:
It may take some time for the Xink app to appear in the Integrated Apps list—please click Refresh to refresh the list.
NOTES:
It can take several hours to deploy the Xink Add-in to all users within your organization.
Verify That Your Email Signatures Are Live
Once the add-in is deployed, your new and reply email signatures will be set automatically.
If you'd like to use an optional signature, an optional email signature such as one in another language, click the Xink icon in your email toolbar to select it. (e.g., another language version).
New Outlook for Windows and Mac:
Classic Outlook for Windows and Mac:
Outlook on the web:
Note:
For cases of redeployment, you can remove the current Add-in in 365 Integrated Apps, then immediately add/upload the Add-in once the previous one has been removed.
Allow 24-72 hours for the Add-in to take effect (both new and redeployment).
How do I verify email signature updates?
Go to the Employees menu of the Xink admin portal and look for the green dot, which shows the time stamp of the last email signature update.
