Synology MailPlus License Pack

Synology MailPlus license packs are designed for adding active email accounts on Synology MailPlus. By default, 5 licenses are installed on a MailPlus supported Synology NAS, and extra licenses can be purchased for additional email accounts according to business needs.

5 Email Accounts
20 Email Accounts

Licensing Plan

Synology MailPlus comes with 5 free email accounts and allows you to add more accounts with additional purchased licenses. We provide two kinds of license packs to suit your needs: 5 or 20 units of email accounts1, both with perpetual validity2. The included licenses can be migrated to another Synology NAS under the same Synology account3.

Please note that email aliases are not considered email accounts and therefore do not require any license at all.

To know the recommended number of active email accounts for each MailPlus supported model, please visit the product page. Simply click a model and go to its specifications page for detailed information.

Notes:
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  1. Once the purchased license key is applied, all its included licenses will be activated at the same time.
  2. The 5 free email accounts cannot be migrated.
  3. All the licenses must be bound to the registered Synology NAS upon activation.

High-availability Architecture

No additional fee will be charged for the high-availability support in MailPlus, and one cluster includes 10 free mail accounts by default. To have more licensed email accounts for use, you need to apply purchased license keys from Synology. For example, if you want to enable 25 email accounts in the high-availability cluster, then 15 additional licenses are needed.

MailPlus Web Client and Mobile App

MailPlus web client and its mobile app (available for Android and iOS) do not charge fees for use, and they will be updated regularly for free with MailPlus Server.

License Activation and Account Management

To apply purchased license keys, you will have to log in to the Synology NAS as the administrator. Then, open MailPlus Server and go to License to apply the keys (Internet connection required). One license key can only be applied to one MailPlus supported Synology NAS.
To activate or deactivate email accounts, go to Account for management.

To check all your activated licenses, please log in to your Synology Account.

MailPlus Features

Learn more about MailPlus features here.

Sizing Recommendations

Model Maximum number of concurrent users Maximum Server Performance
FS6400 2200 5,721,000emails per day, approx. 174GB
FS3400 1,100 4,471,000emails per day, approx. 136 GB
FS2017 1100 4,471,000emails per day, approx. 136GB
FS1018 200 1,840,000emails per day, approx. 56GB
SA3400 1,100 4,471,000emails per day, approx. 136 GB
RS4017xs+ 1100 4,312,000emails per day, approx. 131GB
RS3617xs+ 800 4,235,000emails per day, approx. 129GB
RS1619xs+ 450 3,363,000emails per day, approx. 102.6 GB
RS3617RPxs 500 3,595,000emails per day, approx. 109GB
RS3618xs 500 3,595,000emails per day, approx. 109GB
RS2818RP+ 150 1,484,000emails per day, approx. 45GB
RS2418+/RS2418RP+ 150 1,484,000emails per day, approx. 45GB
RS1219+ 100 936,000emails per day, approx. 28GB
RS820+/RS820RP+ 150 1,484,000emails per day, approx. 45GB
RS818+/RS818RP+ 100 897,000emails per day, approx. 27GB
RC18015xs+ 600 3,847,000emails per day, approx. 117GB
DS3617xs 450 3,363,000emails per day, approx. 102GB
DS3018xs 200 1,909,000emails per day, approx. 58GB
DS2419+ 150 1,484,000emails per day, approx. 45 GB
DS1819+ 150 1,484,000emails per day, approx. 45 GB
DS1618+ 150 1,484,000emails per day, approx. 45GB
DS1019+ 100 1,052,000emails per day, approx. 32GB
DS918+ 100 1,052,000emails per day, approx. 32GB
DS718+ 100 1,052,000emails per day, approx. 32GB
DS218+ 50 623,000emails per day, approx. 19GB
DS418play 50 623,000emails per day, approx. 19GB
DVA3219 150 1,366,000emails per day, approx. 41GB

Applied Models

See the full list of applied models here.