--- title: Receive and Install Synology MailPlus License Guide (2026) description: "Synology NAS devices that support the MailPlus Server package ([check the latest supported models here](https://www.synology.com/dsm/packages/MailPlus-Server)) include **5 free MailPlus email accounts**. Additionally, NAS models that support **Virtual Machine Manager** come with **1 free Virtual DSM**, which also includes another **5…" url: "https://synopower.club/cs/docs/how-to-add-mailplus-license/" updated: "2026-09-20" category: Licenses tags: - License Management --- # Receive and Install Synology MailPlus License Guide (2026) Synology NAS devices that support the MailPlus Server package ([check the latest supported models here](https://www.synology.com/dsm/packages/MailPlus-Server)) include **5 free MailPlus email accounts**. Additionally, NAS models that support **Virtual Machine Manager** come with **1 free Virtual DSM**, which also includes another **5 free email accounts**. (A lesser-known benefit!) ## What a MailPlus License Actually Adds Extra licenses can be purchased for additional email accounts according to business needs. For businesses requiring additional accounts, **Synology MailPlus License Packs** can be purchased to expand email account capacity. Synology MailPlus License code is **perpetual** and available in **5-accounts, 20-accounts** by**two formats**: 1. paper card pack 2. electronic pdf file ■ paper card pack ![](https://synopower.club/wp-content/uploads/2024/02/image-12-png-1024x465.jpg) Each pack contains a card with a key inside, for example here is a demo: ![](https://synopower.club/wp-content/uploads/2024/02/image-14-png-1024x845.jpg) ■ electronic pdf file: (Synology only supplies to distributor or reseller) ![](https://synopower.club/wp-content/uploads/2024/02/image-15-png-556x1024.jpg) Each license includes a unique 20-digit key (format: xxxxx-xxxxx-xxxxx-xxxxx). Licenses can be combined to add multiple email accounts based on your requirements. For example, to connect 30 additional accounts, add one 20-accounts licenses and two 5-accounts licenses. MailPlus License key is **permanently**valid with lifetime update. You could also migrate them to another Synology NAS. **Important Notes:** - Only **active email accounts** need licenses. You can **re-use licenses** from deactivated accounts. - **Email aliases** DO NOT need separate licenses. - Check [here](https://synopower.club/docs/does-my-nas-model-support-mailplus-how-many-users-does-it-support/) or your NAS **product page** under **Specs > Software Specs** for the recommended maximum active accounts. ## Count the Free Accounts You Already Have First Before buying anything, work out what the hardware already gives you. Most people buy a **MailPlus license** one pack too early because they only count the first five. - **Five accounts with every MailPlus Server installation.** They never expire and they are not a trial. - **Another five on a free Virtual DSM instance.** Any NAS that supports Virtual Machine Manager includes one Virtual DSM license, and that guest is a complete DSM — so it runs its own MailPlus Server with its own five free accounts. This is the benefit almost nobody counts. - **Ten in a high-availability cluster.** Pair two NAS units into an SHA cluster and each member contributes its allowance, so the cluster starts at ten rather than five. - **Aliases cost nothing.** Addresses like sales@ or support@ that deliver into an existing mailbox are aliases, not accounts, and never consume a license. - **Only active accounts are counted.** Deactivate a leaver and that seat returns to the pool for the next hire. Add those up before you size your order. A small team running one NAS with a Virtual DSM guest already has ten mailboxes without spending anything, and only needs a **MailPlus license** pack from the eleventh user onwards. --- ## How to Add a MailPlus License in DSM Follow these simple steps to add licenses to your Synology MailPlus Server: 1. **Access Synology MailPlus Server** in DSM. 2. Navigate to the **License** tab. 3. Click **MailPlus > Add License**. ![MailPlus How to add license](https://synopower.club/wp-content/uploads/2024/02/mailplus-add-license-jpg.webp) 4. Agree license statement. ![Synology MailPlus Agreement](https://synopower.club/wp-content/uploads/2024/02/mailplus-afreement.avif) 5. Ensure a stable internet connection and sign in to your Synology Account for activation ![link to Synology Account for mailplus activation](https://synopower.club/wp-content/uploads/2024/02/activate-mailplus-account.avif) 6. Choose an option: ![add license](https://synopower.club/wp-content/uploads/2024/02/Synology-MailPlus-License-add-license.avif) - **Enter an existing license key** (licenses ordered from official reseller like SynoPower Club) - **Buy now** (use your Synology Account registered credit card) 7. Enter license key(s) and click Next to finish ![mailplus license demo](https://synopower.club/wp-content/uploads/2024/02/enter-mailplus-license.avif) Once the license is added, MailPlus active account will automatically update. ## How SynoPower Club Runs on Exactly This Setup This is not a configuration we only recommend. SynoPower Club itself runs as a Docker stack on a **Virtual DSM** instance, and the email that carries your license key to you — any hour, anywhere in the world — is sent by MailPlus on that same NAS, using the five free accounts the guest came with. We have never bought a **MailPlus license** for our own outbound mail. We also lean on the AI writing features built into the MailPlus client to work with customers across sixteen languages: smart drafting, grammar checking, tone adjustment and translation, all applied inside the mailbox instead of pasted out to a browser and back. One caveat worth knowing before you plan around it. Those AI features are an integration, not an included model: an administrator has to supply an API key from an external provider — OpenAI, Azure OpenAI, Amazon Bedrock, Google Gemini or Baidu AI Cloud — and that provider bills you separately for usage. The mail server is yours and paid for once; the AI behind it is metered by whoever you point it at. ## Why a MailPlus License Beats a Subscription - **Cost-effective scalability**: Add accounts as your business grows. - **Perpetual validity**: No renewal required. - **Seamless migration**: Easily move licenses between devices. Planning the wider deployment rather than just adding a key — DNS, deliverability, models, migration from Google Workspace or Microsoft 365? Start here: [Synology MailPlus: the complete guide to running your own mail server](https://synopower.club/synology-mailplus-mail-server-guide/). Buying the packs themselves: [MailPlus License 5-User](https://synopower.club/synology-mailplus-license-pack-5-users/) and [MailPlus License 20-User](https://synopower.club/synology-mailplus-license-pack-20-users/). Keys arrive on screen and by email, 24/7. --- ### **Related FAQs:** - [What is 24×7 Auto License Online Delivery?](https://synopower.club/docs/what-is-24-7-instant-license-delivery-service/) Instant way to receive your Synology licenses and invoice with full warranty and support. 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