Installing the Add-in vs. Purchasing a License
Understand the difference between deploying SecureMailMerge via Integrated Apps and purchasing licenses through our licensing server.
Installing SecureMailMerge and licensing it are two separate steps. This page explains the difference and how to complete both.
Installation vs. Licensing
| Installation | Licensing | |
|---|---|---|
| What it does | Makes the add-in available in Outlook | Removes the promotional footer from emails |
| Where to do it | Microsoft 365 Admin Center (Integrated Apps) or directly in Outlook | licensing.solinventum.com |
| Who does it | IT administrator or individual user | Subscription owner or delegated admin |
| Required for use | Yes | No (free version works without a license) |
Step 1: Installation
The add-in can be installed in two ways:
Individual installation: Each user installs the add-in themselves from Microsoft AppSource or the Apps menu in Outlook. See our installation guide.
Admin deployment (Centralized Deployment / Integrated Apps): IT administrators can deploy the add-in to multiple users at once using Microsoft 365 Admin Center > Settings > Integrated Apps (also known as Centralized Deployment). This makes the add-in appear in Outlook automatically for selected users without them needing to install it themselves. See Deploy SecureMailMerge to your organization for the steps.
Important: Both installation methods only make the add-in available in Outlook. Neither method grants a license. Even when deployed via Integrated Apps, users will see the promotional footer until a license is purchased and assigned separately through the licensing server (licensing.solinventum.com).
Step 2: Licensing (optional)
The free version includes every feature and adds a short promotional footer to each email. A license removes the footer. You need one license per person who sends (their own email address), reassignable within your subscription. To remove the footer, purchase and assign a license:
- Purchase a subscription at securemailmerge.com/purchase, or through the SecureMailMerge SaaS offer on Microsoft AppSource if you prefer Microsoft 365 billing
- Assign the license to the email address of each person who sends at licensing.solinventum.com
- The licensed user opens SecureMailMerge, and the footer disappears automatically
Purchase a license →
Common confusion
“I deployed via Integrated Apps but users don’t have a license”
Deploying through Integrated Apps only installs the add-in. Licenses are purchased separately, either on our website or through the SecureMailMerge SaaS offer on Microsoft AppSource (a different listing from the add-in itself), and are always assigned on the licensing server (licensing.solinventum.com).
“The license shows ‘expired’ even though I assigned the user in Integrated Apps”
Assigning users in Integrated Apps controls who can access the add-in, not who has a license. Licenses are managed at licensing.solinventum.com.
“Who needs to be licensed?”
Only users who send campaigns need a license. Users who only receive merged emails don’t need anything installed or licensed. Within a team, you can have some users on the free version and others with licenses.
See also
Need more help?
Email support with what you were trying to do, what happened and the exact error message. Do not include real recipient data.