Take full control of your data
Move your email from the public cloud to a powerful and secure on-premises solution, achieving data ownership and simplifying compliance with data protection regulations. Plus, free your organization of ever-increasing recurring fees.
An email system that works for your team
Provide a fully configurable email experience for maximum productivity.
Compose like a pro
Powerful and comprehensive tools help you compose emails more efficiently.
Easy-to-manage mail server
Centralize your email administration to ease the burden on IT staff.
Multiple domain support
Host multiple email domains on a single server and configure each independently.
Configure different login methods, daily email traffic quotas, email delivery, and other policies for users and groups.
Assign administrative rights by function to distribute the administrative workload.
Impose individual limits on user mailbox sizes and send out reminders.
Protect your digital communications from external threats with first-class security features. Learn more
Support for S/MIME enables end-to-end encryption at the user level, ensuring that emails always remain private.
Identify viruses and common malware by leveraging a built-in antivirus engine and reputation verification services.
Keep incoming spam out thanks to the high-performance Rspamd engine and regulate outbound emails to prevent getting flagged.
Advanced SMTP security
Support for DANE authentication helps prevent Man-in-the-middle (MITM) and downgrade attacks from intercepting critical emails.
Privacy and availability
Comply with data protection regulations and boost service availability to shield your business from costly interruptions.
Do more with integrations
Increase productivity by integrating Synology MailPlus with the other tools in Synology's productivity suite.
Click on dates displayed in emails to automatically create events in Synology Calendar. Learn more
Choose the right address from your Synology Contacts address books as you type in the recipient's field. Learn more
Start chats with work partners directly from MailPlus with the Synology Chat plug-in. Learn more
Discover how organizations worldwide use MailPlus
Visual effects studio RISE adopted MailPlus for over 190 employees across multiple branches.
- Fast and scalable storage
- High-availability architecture to ensure minimum downtime
Transparent pricing without recurring fees
Total cost of ownership for MailPlus is easy to calculate. Simply estimate your number of users and daily email volume. Check our sizing recommendations to decide which Synology NAS is right for you.
Only pay for active users
MailPlus Server, client, and companion apps are free, with licenses only needed for active users. Perpetual licenses are a one-off purchase and can be added in small increments whenever needed.
Lifetime upgrades and updates
Leverage new features and functionalities in MailPlus and its companion apps, as well as security updates, for as long as your hardware supports it, no matter when you purchased your licenses.
Unlimited license migration
Licenses can be transferred freely between specific end user accounts or mailboxes1 and always remain valid — even if you migrate to new Synology hardware. Learn more
Browse emails wherever you are
Make MailPlus your platform of choice for on-the-go emailing. Available for Android and iOS.
Licenses are activated and managed through a single Synology Account, and cannot be transferred to another account after activation.