Technical Specifications
When choosing software like Synology Surveillance Station, MailPlus, and Virtual Machine Manager, understanding their specifications is crucial. Detailed specs provide insights into core features, limitations, and compatibility, ensuring a smooth setup and optimal performance.
This page compiles the latest specs for these Synology solutions, helping you understand their powerful capabilities and the value of purchasing licenses. Once the software meets your needs, you can easily expand its capacity by purchasing licenses from SynoPower Club to optimize its use.
For release notes for software under different DSM OS, you could visit those links to stay updated: Surveillance Station, Synology MailPlus ( server, client), Virtual Machine Manager, Virtual DSM.
Synology Surveillance Station
Synology MailPlus
Virtual Machine Manager
Synology Surveillance Station
Surveillance Station 9.2
Features
- Versatile monitoring platforms: Surveillance Station web-based interface, the desktop utility Synology Surveillance Station Client, the PC-less surveillance solution VisualStation, the network video recorder (NVR) application Local Display, and the mobile app DS cam
- Comprehensive integration with 8,300 IP cameras, Synology Live cam, I/O modules, door controllers, IP speakers, and POS systems
- Event detection with powerful video analytics and instant notifications
- Centralized management for 10,000 cameras on 1,000 multi-site Synology servers
- Recording backup and archiving to remote servers with customized setting
Specifications
- System requirements:
- Operating system: Windows 7/macOS 10.13 or above
- Browser: Google Chrome
- CPU: Core i5 and above (Choose a PC or VisualStation to monitor with Surveillance Station)
- Supported formats:
- Video formats: MJPEG, H.264, H.264+, H.265, H.265+, MPEG4, MxPEG
- Streaming tunnel formats: MJPEG, H.264, H.264+, H.265, H.265+, MPEG4, MxPEG via RTSP over TCP, UDP, HTTP
- Camera audio codecs: PCM, AMR, G.711, G.726, 16-bit PCM-LE
- Recording audio formats: MP3, Wav, Qgg, QMA, G.726, AMR
- Map formats: BMP, JPG, JPEG, GIF, PNG, SVG
- Supported languages: Czech, Danish, Dutch, English, French, German, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese Brazil, Portuguese European, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish
Limitations
- The supported video formats may vary according to the specifications of each client device (Choose client device or browser for Surveillance Station)
- The supported audio codecs may vary according to the specifications of each camera
Application component
Live Monitoring
Specifications
- Available on web browsers, Synology Surveillance Station Client, Local Display, VisualStation, and DS cam (Choose client device or browser for Surveillance Station)
- Supports Monitor Center as the centralized interface for viewing live video from multiple cameras
- Monitor Center layouts:
- Supports customizable layouts with up to 100 channels
- Sequential layout: Rotates layouts in a set order periodically
- Alert layout: Automatically jumps to the layout when an event is triggered
- Camera group layout: Displays all cameras in the group
- Supports dynamic stream adjustment by display size or event detection
- Supports instant display of motion detection, advanced events, digital input, tampering detection, audio detection, Face Recognition, and Deep Video Analytics events
- Supports an I/O widget channel to display device statuses and manually trigger events
- Supports interactive maps that provide quick access to devices and alerts, and allows integration with OpenStreetMap, Google Map, and custom tile servers
- Supports an alert panel for camera, I/O module, door controller, and transaction device event recordings
- Supports on-screen display (OSD) buttons to control drag and zoom, manual recording, camera information display, and audio/digital output for external devices
- Supports snapshots with instant blur, mask, and download features
- Supports camera operation buttons to control zoom, focus, iris adjustment, auto-pan, show/hide PT control cursor, and auto object tracking
- Supports Privacy Masking that covers sensitive areas in camera views
- Supports overlaying text watermarks on live camera feeds to prevent data leakage
- Supports GPU acceleration that can reduce the CPU loading to provide a smoother display
- Supports Live View Analytics and Smart Search features for motion detection, missing object, foreign object, camera occlusion, focus lost, and no-idle zone events
- Supports Fisheye Dewarping to display fisheye footage in a rectilinear or panoramic view
- Supports Joystick control for an alternative operation method
- Supports Live Broadcast to send live camera streams to YouTube
Limitations
- Monitor Center cannot display footage if the total camera resolution exceeds the capacity of the graphics card of the client computer
- Web browsers and DS cam do not support Joystick, Fisheye Dewarping, Smart Search, and Live View Analytics
- Drag-and-drop map uploading is only supported on Google Chrome and Firefox
- A Google Maps API key is required to use Google Maps in Surveillance Station (How to enable Google Maps service in Surveillance Station)
- Recordings with privacy masking can only be downloaded from Synology Surveillance Station Client
- GPU acceleration:
- Only supports H.264 and H.265 formats (Depending on the graphics card of the client device)
- Only compatible with Synology Surveillance Station Client running on macOS, Windows 7, and Windows 10
- Audio output is only available over HTTPS connection via web browsers
- Live Broadcast only supports streaming in H.264 format
Recording
Specifications
- Supports recording timeline features in Monitor Center
- Supports recording playback, label, and bookmark features
- Supports manual, continuous, motion detection, I/O alarm, customized, and action rule triggered recording
- Supports pre/post-recording time settings that include footage of the 5 to 300 seconds before or after events into event recordings
- Supports recording truncating that saves 1 to 240-minute clips
- Supports Dual Recording that saves an extra set of camera recordings with different resolution, FPS, schedule, and retention settings
- Supports Edge Recording that ensures uninterrupted recording on SD-card-supported cameras when they are disconnected
- Supports Smart Time Lapse that condenses long recordings into 60-second clips
- Recording Player:
- Supports buttons to control play/pause, next/previous frame, forward/reverse, fast forward/rewind 10 seconds, next/previous event, fast forward/slow motion
- Supports image enhancement options to adjust the brightness, contrast, saturation, and sharpness
- Download:
- Supported download formats: MP4 and AVI
- Supports merging and downloading separate recordings into one file
- Supports overlaying text and image watermarks when downloading recordings
- Supports password protection to lock downloaded recordings
- Supports recording encryption to secure recording access in Surveillance Station
- Backup:
- Supports using Hyper Backup to back up Surveillance Station system configurations and recordings to external devices or remote servers
- Supports using Archive Vault to archive recordings to remote servers with customized time range, camera, and event-mode settings
- Supports using C2 Backup for Surveillance (formerly C2 Surveillance) to upload recordings to Synology C2 cloud storage
- Storage:
- Supports customizing the recording storage with encrypted shared folder options for each camera
- Supports recording rotation triggered by retention time or storage size
- Supports recording indexing that synchronizes the recordings listed in Surveillance Station with the actual files in File Station
- Supports share links that allow non-Surveillance Station users to view and download recordings
Limitations
- Encrypted shared folders cannot be accessed via NFS
- Videos cannot be locked during the recording process
- Pre/post-recording times:
- Settings over 10 seconds may affect the system performance due to increased memory consumption
- 300-second settings are only available on Synology models with a memory capacity of 4 GB and above
- Watermark:
- Watermarks are only available on Synology Surveillance Station Client
- Recordings with watermarks cannot be authenticated by Synology Evidence Integrity Authenticator
- Watermarks cannot be overlaid if the recordings selected to merge and download are in different resolutions
- Encrypted recordings cannot be accessed via SMB or File Station
Notification
Specifications
- Provides instant notifications via SMS, email, mobile devices, and webhooks
- Supports Action Rule triggered notifications
- Allows customization of the notification contents of each event
- Supports notifications of IP cameras, I/O modules, Surveillance Station Client, VisualStation, CMS recording servers, and external devices
- Provides notification combination options to reduce excessive messages
- Provides notification muting options to prevent interruption
- Supported email providers include Gmail, Outlook, QQ, and customized SMTP servers
- Allows 10 email notification recipients
- Event snapshots can be attached to notification emails
- Supports push service on DS cam and DS finder
Limitations
- Only administrators can modify notification settings
- Event snapshots cannot be attached when the notification combination function is enabled
CMS
Specifications
- Supports using a host server as the centralized platform to manage Surveillance Station features on paired recording servers
- Supports up to 1,000 recording servers and 10,000 IP cameras in one system (Select a Synology product as the host server for Surveillance Station CMS structure)
- Supports cross-domain deployment (CMS Failover White Paper)
- Supports QuickConnect ID, IP address, and FQDN connection
- Supports batch updating servers on-line and off-line
- Supports migrating IP cameras and their recordings between servers
- Grants host servers full management over the device licenses of recording servers
- Failover:
- Supports automatic failover protection from recording servers to multiple failover servers (CMS Failover White Paper)
- Supports migrating device licenses to failover servers during failovers
- Supports restoring recordings, snapshots, and archived recordings from failover servers back to recording servers
Limitations
- Failover servers must support the same number of cameras as the recording servers
- All servers under CMS must run the same version of Surveillance Station (The same DSM version is not required)
- CPU performance may be affected if more than one-third of the recommended number of supported cameras are installed on the host server (Select a Synology product as the host server for Surveillance Station CMS structure)
- Failover downtime is determined by the number of cameras to be transferred and the CPU computing power of the failover server
- Camera migration can only function via SMB services
- The default licenses of Synology products running as failover servers cannot be used
Management
Specifications
- Supports high performance/high quality video scaling options in Monitor Center
- Supports automatically signing out inactive accounts to ensure security
- User:
- Supports customizing user permissions to servers, IP cameras, I/O modules, and applications (Monitor Center, Maps, Recording, Log, Snapshot, and Home Mode)
- Manager privileges grant users full control over all functions
- Spectator privileges only allow users to view and operate authorized functions
- Supports customizing account activation schedules for each user
- Log:
- Supports system logs that record all Surveillance Station system operations
- Supports event logs that record camera, I/O module, Face Recognition, Deep Video Analytics events and corresponding recordings
- Supported download formats: HTML and XLSX
- Supports rotation by day, size, or log number
- Supports sending logs to syslog servers
- Supports Action Rule that links multiple surveillance devices and automates actions by trigger or schedule
- Supports Dual Authorization with up to 20 supervisors (Dual Authorization)
- Supports using the built-in NTP server to synchronize the time across devices
- Supports domain and LDAP services
- Supports muting the beep sound temporarily on NVR Local Display
Limitations
- Only administrators can manage privilege profile settings
- Users can only be added to groups from DSM Control Panel
- Synology NVR servers do not support domain/LDAP service
License
Specifications
- Each Synology server comes with two or more default device licenses (Please refer to the datasheet of your model for the exact number)
- Allows scalable surveillance deployment with extra licenses
- Device License Packs are sold separately with 1, 4, or 8 licenses (Surveillance License Plan)
- Grants CMS hosts servers full management over the licenses of recording servers
- Supports offline license management via Surveillance Station Client and DS cam
- Supports license migration between different Synology servers
Limitations
- Default licenses cannot be deleted or migrated
- Certain surveillance devices may require more than one license ( How many Synology Camera License required by different devices)
- The default licenses of Synology products running as failover servers cannot be used
Home Mode
Specifications
- Allows users to set recording, notification, stream, and action rule settings that activate according to their Home location
- Supports Geofence triggering via DS cam device locations with a GPS radius of 100-500 meters
- Allows manual and scheduled (one-time/recurring) activation
- Supports GPS and Wi-Fi assistance for higher positioning accuracy
- Supports trigger-delay to prevent unnecessary activations when users enter and leave the Home radius repeatedly within a short time
Limitations
- Home Mode is not supported on servers in a CMS structure
- Geofence can only be set up via DS cam
- The power consumption of mobile devices may increase if GPS and Wi-Fi assistance are enabled
Comprehensive Camera Support
Specifications
- Complete ONVIF integration with Profile S for video streaming, Profile G for edge storage, and Profile T for H.265 video compression
- Compatible with over 8,300 IP cameras from 140 brands (IP Camera Support List)
- Supports up to 128 IP cameras on a single Synology server (NVR selector)
- Supports HTTPS and SRTP connection
- Supports batch adding cameras on-line and off-line by importing pre-filled .xlsx lists and configuration files, or by scanning an IP range
- Supports multi-streaming with individual resolution, frame rate, bitrate, and image quality settings
- Supports versatile event detection types, including motion detection, tampering, and PIR
- Supports PTZ controls on compatible cameras
- Supports automatic camera patrol triggered by schedule, detected events, or I/O alarms
- Supports customizing information display settings, including timestamp, format, and camera position
- Supports exposure mode settings that reduce image noise caused by light exposure or day-night mode switching
- Supports Field of View (FOV) settings for cameras to capture images with wider angles
- Integrated AXIS ACAP VMD and ACAP applications (Perimeter Defender, Cross Line Detection, Digital Autotracking, Tailgating Detector, and Object Analytics)
- Integrated Hikvision Smart Events
- Integrated DAHUA IVS (Intelligent Video System)
- Supports camera groups for easy management of large numbers of cameras
Limitations
- IP addresses in IPv6 format are not supported
- Certain event detection types, PTZ controls, day-night mode, and FOV adjustments are only available if the camera supports the features
Intelligent Video Analytics
Specifications
- Face Recognition:
- Supports registering up to 10,000 user profiles with customized members, local DSM, domain, and LDAP users
- Supports detecting covered/uncovered faces
- Supports ignoring faces smaller than a set size
- Supports recognition result playback, download, and locking
- Available on CMS recording servers and failover servers
- Deep Video Analytics (DVA):
- Supports four task types: People and Vehicle Detection, Intrusion Detection, People Counting, and Vehicle Counting
- Supports detection result playback, download, and locking
- Supports DVA task, detection result, and archive features on CMS recording servers
- Supports Smart Tags that automatically mark object types and specific behaviors
- People and Vehicle Detection:
- Supports License Plate Recognition that identifies global license plates that consist of alphanumeric characters (Enhanced the accuracy in specific regions)
- Supports registering up to 10,000 customized license plates (4 to 12 characters)
- Supports detecting vehicles traveling at a speed lower than 40 km/hr
- Supported report download formats: HTML and XLSX
- Supports loitering detection that triggers events when people or vehicles stay over a set time
- Supports crowd detection that triggers events when the occupancy in detection zones exceeds the limit
- Intrusion Detection:
- Supports detecting specific targets
- People Counting & Vehicle Counting:
- Supports crowd detection that triggers events when the occupancy in detection zones exceeds the limit
- Supports merging counting tasks to combine the numbers of multiple tasks
- Supported report download formats: HTML and XLSX
Limitations
- Face Recognition and Deep Video Analytics are only supported on DVA series models (DVA: Deep Learning NVR Series)
- The number of available intelligent video analytics tasks depends on the model of your Synology server (How many Face Recognition and Deep Video Analytics tasks)
- The detection accuracy depends on the actual surroundings and task deployment
Affiliated Utility
Synology DS cam
Features
- An intuitive mobile application on Android and iOS devices for viewing live streams, recordings, and snapshots from IP cameras connected with Surveillance Station
- Provides real-time notifications for events triggered by surveillance devices
Specifications
- System requirements
- iOS: 14.0 or above
- Android: 8.0 or above
- Multi View
- Multi-channel live views and synchronized playback with multiple layout choices (1×2, 1×3, 2×2, and 2×3)
- Allows users to choose display cameras and change the display order
- Flexible playback speed control (from 0.25x to 5x), with key frame playback at maximum speed available
- Shortcut panel with buttons for the following functions: playback controls, event switching, quick seek, snapshots, PTZ controls, optical zoom, timescale, two-way audio, manual access, and fixed aspect ratio
- Supports dragging the timeline bar to an earlier moment to view recordings at the time
- Supports pinching the timeline to adjust the scale or enabling Smart Timeline to automatically adjust the timescale according to your scroll speed
- Single View
- Available in both Multi View and Cameras tabs
- Flexible playback speed control (from 0.25x to 5x), with key frame playback at maximum speed available
- Shortcut panel with buttons for the following functions: playback controls, event switching, quick seek, snapshots, PTZ controls, optical zoom, timescale, two-way audio, manual access, and fixed aspect ratio
- Supports dragging the timeline bar to an earlier moment to view recordings at the time
- Supports pinching the timeline to adjust the scale or enabling Smart Timeline to automatically adjust the timescale according to your scroll speed
- Mute/Unmute button to turn on or off sounds in the videos
- Manual recording and camera setting adjustments available in the single view mode, including stream quality, digital output, preset position, patrol, auto-pan, etc. (Available options vary by device)
- Supports PiP mode for Android devices
- Cameras
- Allows users to manage all available cameras and view live streams, recordings, and event recordings from a single camera
- Supports switching the display mode between List-view and Thumbnail-view and changing the camera display order
- Provides camera basic information
- Cameras can be enabled and disabled
- Supports searching for cameras by keywords, sources, or statuses
- Floating player to continuously play recordings without having to stay on the page
- Recordings
- Allows users to view all recordings stored on Synology NAS/NVR
- Flexible playback speed control (from 0.25x to 5x), with key frame playback at maximum speed available
- Mute/Unmute button to turn on or off sounds in the videos
- Supports searching for recordings by date, time, source, camera, lock status, and recording mode
- Delete, lock, unlock, and download actions of recordings
- Supports taking snapshots of the current video frame
- Supports the downloading of an video file by specifying a time duration, and allows you to preview the video clip
- Floating player to continuously play recordings without having to stay on the page
- Snapshots
- Allows users to view all snapshots stored on Synology NAS/NVR
- Supports searching for snapshots by date and lock status
- Delete, lock, unlock and download actions of snapshots
- Notifications
- Sends push notifications when predefined events are triggered, with available notifications including system, camera, I/O module, speaker, VisualStation, server, access control, external device, Deep Video Analytics, Archive Vault, and clients related events
- Notifications can be muted for a given period (20 minutes, 1 hour, 2 hours, 4 hours, 8 hours, or mute until today ends)
- Do Not Disturb mode mutes all notifications within a specified time frame
- Thumbnails for quick accesses to the single view page of cameras
- Supports searching for notifications by keywords and read status
- Home Mode
- Supports the automatic activation of Home Mode on Surveillance Station based on the device’s location or the connected Wi-Fi
- Supports the use of GPS for better Home Mode location detection accuracy
- Supports setting the Home location by using the current location, entering an address in the search bar, or dragging and dropping the location pin on the map
- Supports adjusting the Home location radius to reduce possible detection errors (Available options range from 100 meters to 500 meters)
- Supports pairing multiple mobile devices, activating and deactivating Home Mode when a paired device enters and leaves the set Home location (When there are multiple paired devices, Home Mode will be activated by the first device that enters the Home location and deactivated by the last device that leaves)
- Adjustable trigger delay time to reduce possible miscalculations if users enter or leave the Home location range within a short time (Available options include 30 seconds, 1 minute, 2 minutes, and 3 minutes)
- Supports manually entering/leaving Home Mode
- Licenses
- View, add, and delete actions of licenses
- Offline license management for Surveillance Station without an Internet connection or within an isolated local network
- Others
- Supports signing in with a QuickConnect ID over the Internet (Network latency may be higher than usual if the connection to Surveillance Station is made via the QuickConnect relay service)
- “Remember me” option and login history for quick logins
- Hardware decoding for system performance optimization
- Passcode lock supporting fingerprint/Touch ID or Face ID unlock and passcode re-authentication settings for data security
- Screen Mirroring (AirPlay) with options to cast the entire screen or play videos only (Only available on iOS devices)
- Administrators can assign privilege profiles to users to allow only users with sufficient permissions to perform certain actions on DS cam or access certain devices (Privilege profiles must be configured on Surveillance Station)
- Supported video codecs: MJPEG, H.264, H.264+, H.265, H.265+, MPEG4, and MxPEG
- Supported audio formats: G711, G726, PCM, and AMR
Limitations
- Timeline in the Multi View page only supports Sync-mode
- Preset positions and patrol paths can only be created on Surveillance Station
- Enabling GPS and Wi-Fi assistance may increase device power consumption
- The mobile devices are required to be connected to the Internet for users to add or delete licenses
- Maximum supported resolution may vary by device
- DS cam does not support multi-window mode/Split View
Synology LiveCam
Features
- Turns your Android or iOS mobile devices into an IP camera and pairs it with Surveillance Station
- Records seamlessly even when disconnected from the Internet or paired Surveillance Station
- Files can be downloaded and stored locally on the mobile devices
Specifications
- System requirements
- iOS: 12.0 or above
- Android: 8.0 or above
- Camera
- Portrait and landscape orientations for video streaming and recording
- Controls LED flashlight of mobile devices for better illumination (LED flashlight can also be controlled from paired Surveillance Station and DS cam)
- Power-saving minimizes device display brightness
- Supports taking snapshots and stores the snapshots in Surveillance Station
- Two-way audio to receive/send audio from/to paired Surveillance Station
- Recording
- Access to all Synology LiveCam recordings stored on paired Surveillance Station and mobile device
- Supports searching for recordings by date, time, lock status, and upload status
- Delete, lock, unlock, and download actions of recordings
- Supports taking snapshots and stores the snapshots in Surveillance Station
- When recording continuously without interruptions, the system automatically truncates recordings every 30 minutes; recordings in the seamless recording mode are truncated every 10 minutes
- Snapshot
- Supports viewing all snapshots, including snapshots taken by Synology LiveCam, paired Surveillance Station, or DS cam
- Supports searching for snapshots by date, time, and lock status
- Delete, lock, unlock, and download actions of snapshots
- Settings
- HTTPS-secured connection
- Supports selecting device front camera as the streaming source
- Supports recording without sound
- Adjustable resolution and FPS (The available options vary by your device)
- Adjustable video quality: low, medium, high
- Video Stabilization feature (Only available on supported devices)
- On-screen display information, including date, time, and custom texts, can be shown on the top or bottom of the video
- Auto screen lock: 1, 2, 5, 10 minutes, or never
- Motion Detection with adjustable sensitivity and threshold
- Recording rotation by day/size
- Recordings can be stored in any existing shared folders on paired Surveillance Station
- Records seamlessly when the Internet or paired Surveillance Station connection is lost and uploads the videos temporarily stored locally once the connection resumes
- Passcode lock that supports fingerprint/Touch ID or Face ID unlock and passcode re-authentication settings for data security
Limitations
- Each mobile device running Synology LiveCam requires a Surveillance Device License to operate
- Synology LiveCam requires Android 7.0 or iOS 9.0 and above
- Only user accounts belonging to the administrators group on DSM or with sufficient permissions can pair Synology LiveCam with Surveillance Station
- Users cannot view live streaming without recording the videos
- Video orientation cannot be changed once the recording starts
- Video streaming consumes a certain amount of mobile device power
- Video streaming may be interrupted by other system operations, such as launching another camera app or entering power saving mode, which block apps from running in the background
- Video streaming is not available if your connection to Surveillance Station is made via QuickConnect relay service
Synology Transactions Simulator
Features
- A desktop application that simulates a Point of Sale (POS) user interface, allowing users to test all features of Transactions in Surveillance Station
Specifications
- System requirements
- Windows 7 or above
- Simulates a transaction device connected through TCP
- Supports processing transaction data by a list of predefined items
- Supports deleting or canceling transactions
- Supports checking-out transactions by the total amount or payment amount
Limitations
- The predefined items of the transaction data list cannot be modified
- Transaction data cannot be saved
Synology Transactions Compatibility Tool
Features
- A desktop application that checks the compatibility between Surveillance Station and Point of Sale (POS) software
Specifications
- System requirements
- Windows 7 or above
- Checks the compatibility through TCP and COM connections
- Displays transaction data
- Allows users to set rules for starting and ending transactions
- Allows users to add filters to ignore certain characters or replace characters with line breaks/other characters to mark the data
Synology Evidence Integrity Authenticator
Features
- A desktop application that validates that recordings and screenshots produced by Surveillance Station have not been tampered with
Specifications
- System requirements
- Windows 7 or above
- macOS 10.12 or above
- Validates files uploaded individually or in batch
- Shows the exact production time and the serial number of the Synology server that produced the images
Limitations
- Recordings with watermarks, even ones added via Surveillance Station, cannot be authenticated
Synology Video Converter
Features
- A desktop application that converts videos to a format compatible with Surveillance Station
Specifications
- System requirements
- Windows 7 or above
- Converts the formats of videos
Synology MailPlus
Application component
Synology MailPlus Server 3.2
Features
- Privately-owned mail service on a Synology NAS, providing multiple domain centralization management, user policy, and mail logs for easy management
- Cross-platform mail solution for accessing emails on computers or mobile devices
- Full-fledged security features for the defense against malicious attacks: Rspamd anti-spam mechanism, spam auto-learning, ClamAV anti-malware, and advanced SMTP security
- High-availability cluster for an uptime mail service during system updates and hardware replacements via switching the mail system to the paired server in seconds
- Seamless mail migration tool designed for Gmail, Google Workspace, Microsoft Exchange, Yahoo, and other IMAP servers
Specifications
- Monitoring
- Outgoing emails sent, resent, or unable to be sent from your Synology MailPlus Server, and incoming emails received or rejected by your Synology MailPlus Server
- Real-time server information including high-availability cluster status
- Statistics of various kinds of email threats presented by graphs
- Statistics of blocked inbound and outbound emails respectively, along with top senders/recipients of such emails
- Management
- Multiple domain management and configuration settings related to alias, auto BCC, usage limit, and disclaimer in Synology MailPlus Server
- SMTP authentication that forces clients to provide user credentials for login while connecting to Synology MailPlus Server via SMTP
- SMTP settings and diverse policies for blocking emails that exceed the limits: hostname, SMTP banner, the maximum number of recipients per email, the maximum number of email hops, and the maximum size per email for Synology MailPlus Server
- External postmaster, which is set to receive system emails sent to Mailer-daemon and postmaster aliases from other mail servers
- Mail delivery settings that allow sending emails through other mail servers so that mail content will not be exposed to the Internet and subject to possible attacks
- Synology MailPlus as a relay server that sends emails for servers listed on the trusted list, and receives emails listed on the domain list
- Block and allow lists to reject, discard, or accept emails that match the set criteria
- Connection policies for blocking emails from unidentifiable domains and hosts that cannot be identified or may cause Synology MailPlus Server to be overloaded
- Smooth communication between Synology MailPlus Server and external mail servers/third-party clients via SMTP, POP3, and IMAP
- The high-availability structure which maximizes the service uptime during system updates and hardware replacements by switching the mail system to the paired server in seconds
- Mailbox quota and the corresponding notification settings for the control of data growth
- Mailbox details including sizes and user statuses displayed on the console for easy management
- Batch deletion of deactivated users’ mailboxes to quickly free up storage space
- Mail import and export:
- Emails can be imported to a user’s mailbox in the SMC or PST format
- Users’ mailboxes can be exported to PST files
- Security
- Custom spam filtering rules work with auto-learning to achieve accurate detection
- DNSBL filters out spam published through the DNS based on a list of IP addresses of computers or networks
- Greylist returns a temporary error to mail clients
- Antivirus engines ClamAV and McAfee (paid option) scan all incoming and outgoing emails for viruses. When an email is found infected, the system will delete or quarantine the email and send notifications to the intended recipients
- ClamAV antivirus engine databases, such as Google SafeBrowsing database or a third-party database, help detect malicious links in emails
- Virus definitions are automatically updated according to the custom schedule
- Various authentication mechanisms, including SPF, DKIM, DMARC, and DANE, guard against spam and identity theft
- Emails with potentially dangerous elements will be filtered out when scanned by content and attachment file types
- MCP (Message Content Protection) rules can filter or block targeted emails. If an email is matched with the rule’s criteria, the rule score will be the total sum of the MCP score. If the total MCP score exceeds the MCP threshold score you defined, the mail system will execute the action you have selected from the following: Save to quarantine, Deliver anyway, Delete mail, Notify sender, or Forward
- Auditing
- Displays logs of the mail queue for users to view the status of emails and to control emails in the queue
- Displays logs regarding incoming/outgoing emails from your Synology NAS
- Displays administration logs to record setting changes made by administrators
- Allows keyword search for deleting or exporting emails
- Forwards logs to another server to back them up or transfers logs to a syslog server for centralized management
- Tracks the mail system/traffic and sends logs periodically
- Mail Migration
- Seamless migration tools for Gmail, Google Workspace, Microsoft Exchange, Yahoo, and other IMAP servers
- Supports reusing system configurations from Microsoft Exchange for a quick system replacement
- Supports migrating emails from Google Workspace (Gmail) per label, with the original structure remaining intact
- Multiple tasks for mail migration from external mail servers: custom filters for bypassing spam emails, emails received after a specific date, and emails exceeding the size limit (KB)
- Mail migration without asking for access permissions of each source Exchange user account as long as a delegated account is available
- Seamless migration tools for Gmail, Google Workspace, Microsoft Exchange, Yahoo, and other IMAP servers
- Sizing
- Maximum number of concurrent users: 4,000
- Maximum number of emails processed per day: 5,721,000
Limitations
- The user limit and the number of emails that can be processed per day vary for different Synology NAS models. For details, refer to the product specifications or the Synology MailPlus license page
- To ensure the smooth running of security engines, it is recommended that you use models with at least 2 GB RAM
Synology MailPlus
Features
- An intuitive and powerful webmail client designed for organizing emails and sharing mailboxes with work partners
- User interface like three-column mode and the option for conversation view to better fit user experience
- Custom filters and priority mailbox for effective mail management
- Shared mailboxes to centralize emails of a specific project
- A hub of communication and schedules through its seamless integration with Synology Chat and Synology Calendar
Specifications
- Compose
- Auto-complete list based on recipient email addresses saved in Synology Contacts
- Auto-saved drafts
- S/MIME and OpenPGP for email encryption and signing
- Send cancellation period of 5, 10, 15, 20, or 30 seconds
- User-defined text styles: font styles, font sizes, and colors
- Auto-reply/forward based on user settings
- Schedule send to deliver emails at a specific date and time
- Mail merge for personalized mass mail (How do I use mail merge in Synology MailPlus?)
- Mail templates to save frequently used text and images for reuse
- Mail Management
- Centralizes management with a priority mailbox collecting emails from various mailboxes or labels
- Supports nested labels for hierarchical classification
- Filters emails with custom exception rules for email organization
- Allows sorting emails by starring, archiving, moving to customized mailboxes, as well as adding labels
- Allows sharing mailboxes with internal users/groups to centralize emails over a specific project. Specific access permission to a shared mailbox can be assigned to each user/group
- Allows archiving a mailbox to make all the archived emails appear in this mailbox
- Provides two columns and three columns for the split pane mode, with additional layout options for two columns: one line without preview, one line with preview, and two lines
- Provides a universal search bar with syntax operators to quickly find a specific email
- Has flexible options for the display of external images: always display external images or ask before displaying. The latter prevents malicious senders from exploiting externally linked images
- Sends push notifications with a browser extension (optional)
- Displays emails in the conversation mode or the individual message mode. In the conversation mode, a single email will be grouped with all its replies
- Displays mailbox usage and sends warning messages when approaching the storage limit
- Supports previewing various file formats of email attachments using Universal Viewer
- General Settings
- Supports multiple signatures for different scenarios
- Restores a conversation wrongly identified as spam
- Allows adding additional SMTP servers or editing existing ones according to personal preference. For example, you can add the Google SMTP server and enter your Google account and password to send emails via your Google account in Synology MailPlus
- Custom POP3 servers and predefined ones (e.g., Gmail) for fetching emails from different servers to Synology MailPlus
- Administrator
- Allows users to receive emails from external POP3 servers
- Allows users to share links for large attachments
- Allows users to use S/MIME or OpenPGP to encrypt and sign emails
- Allows users to customize the logo in the Synology MailPlus web portal
- Integration
- Integrates with Synology Chat and Synology Calendar, serving as a hub of communication and schedules. With the plug-ins of Synology Chat and Synology Calendar, users can dive into project discussions and add emails to your to-do list right from Synology MailPlus
- Adds a conversation to Synology Calendar tasks
Affiliated Utility
Synology MailPlus (Mobile)
Features
- Intuitive user interface for composing mails, receiving mails, and managing mails across Android or iOS devices
- Labels and user-defined mailboxes for custom mail organization
- Multiple templates, various built-in stickers and emoji for a quick reply
- Synology Calendar integration within the MailPlus app for seamless viewing, managing, and filtering of calendar events
- Daily summaries available for important calendar events
- Option to hide or unhide calendar events
Specifications
- System requirements
- iOS: 13.0 or above
- Android: 9 or above
- System requirements for Calendar features
- iOS: 16.0 or above
- Android: 10 or above
- Email management
- Conversation view for intuitive mail browsing
- Easy ways to keep mailboxes organized: apply labels, move to a certain mailbox, and mark as starred/read/unread
- Localized email address to send emails with or receive emails from email addresses in native languages (e.g., Chinese and Russian)
- Swipe gestures for moving across the next or previous email thread
- Actions on email notifications: delete, archive, and mark as read
- Undo operations for the labeled actions: delete, move, archive, and remove
- Mail printing in a thread
- Image viewer for viewing attached images without downloading
- Manual events adding to Synology Calendar
- Calendar management
- Calendar view options for browsing events:
- Day view
- Agenda view
- Calendar display options:
- Show My Calendar
- Show Other Calendars
- Event display options:
- Show hidden events
- Show declined events
- Actions on calendar events: view, create, edit, and delete
- Event reminders sent at a specified time
- Option to hide or unhide events
- Notifications for all events
- Daily summaries of important events
- Calendar view options for browsing events:
- Security
- Passcode lock for data protection (Touch ID supported)
- OpenPGP for email encryption and decryption
- Reports of suspicious emails sent to the system administrator for spam learning enhancement
- Settings
- Account switching to receive notifications from different sources without repeating the login process
- Custom swipe options: delete, archive, mark as Spam/Not Spam, mark as read/unread, apply labels, move to a certain mailbox
- Custom preview lines based on user preferences
- Font size settings: large, medium, small
- Push notifications when there is an email received in the user-defined mailboxes
- Mobile signature settings for sender information display
- Multiple templates for a quick reply
- Auto remote images loading
- Email content prefetching on Wi-Fi only
- Integration with Synology Calendar or other calendar applications
- Mailbox management: create, edit, and delete mailbox
- Label management: create, edit, and delete labels
- Cache storage limit for images and attachments
- Dark theme settings
- Option to enable Synology Calendar
- Calendar notifications for all events
- Daily summaries for displayed events
- First day of the week settings
- Week number display
Virtual Machine Manager
Virtual Machine Manager 2.7
Features
- Intuitive hypervisor software that allows your Synology NAS servers to run various operating systems on virtual machines
- Centralized management and monitoring of multiple instances of virtual machines in a cluster of multiple Synology NAS servers
- Virtual machine migration for effective hardware resource management
- High availability and disaster recovery solutions for maximum service uptime
- Supports running Virtual DSM that offers robust features and is equally powerful as DiskStation Manager (DSM)
Specifications
- Supports various operation systems, including Windows, Linux, and Virtual DSM (Learn more about the complete list of supported operating systems and the Virtual DSM license)
- Maximum number of virtual machines varies by Synology NAS models
- Supports up to 7 Synology NAS in a cluster
- Privilege control for each virtual machine
- Easy sharing of and access to virtual machines via browser URLs
- Real-time CPU, memory, and network usage monitoring
- Supports virtual machine instant clone
- Supports virtual machine suspension and resumption
- Supported image types:
- Virtual DSM: *.pat
- ISO: *.iso
- Disk: *.img, *.vmdk, *.vdi, *.vhd, *.vhdx, *.qcow2
- Supports exporting a virtual machine as an OVA file
- Schedulable snapshots for each virtual machine
- Maximum number of snapshots per virtual machine: 32 (255 with a VMM Pro license)
- Maximum number of snapshots per host: 65,536
- Supports file-system consistent snapshots (Synology Guest Tool required on the guest OS)
- Maximum number of virtual switches: 4 (4,096 with a VMM Pro license)
- Maximum share links per host: 2 (16 with a VMM Pro license)
- Virtual machine specifications
- CPU
- Compatibility mode for live migrations when CPUs on two hosts are different
- Hyper-V Enlightenments function for I/O performance optimization
- Virtual machine priority for CPU resource reservation
- Maximum number of virtual CPUs varies by Synology NAS models
- RAM
- Minimum RAM
- Virtual machine: 128 MB
- Virtual DSM: 1 GB
- Maximum number varies by Synology NAS models
- Minimum RAM
- Disk
- Supported disk controller: IDE, SATA, VirtIO
- Maximum number of disks per virtual machine/Virtual DSM: 8
- Supports storage Quality of Service (QoS) with virtual machine priority
- Supports maximum and minimum IOPS for each virtual disk
- Network
- Supported network interface: virtio, e1000, rtl8139
- Supports SR-IOV
- Maximum number of virtual interfaces per physical network adapter: 8
- Supports MAC address modification
- Minimum vNIC per virtual machine/Virtual DSM: 1
- Maximum vNIC per virtual machine/Virtual DSM: 8
- Others
- USB 2.0/3.0 passthrough (not supported on Virtual DSM)
- Supported video card: cirrus, vga, vmvga
- Supported boot modes: UEFI BIOS, Legacy BIOS
- CPU
- Supports running virtual machines instantly restored from Active Backup for Business with compression or encryption at backup destination enabled
- Supports up to four IDE devices
- Advanced features for Virtual Machine Manager Pro:
- Live migration relocates a virtual machine to another host without interrupting ongoing services
- Supports High Availability for virtual machines
- Protection plans secure virtual machines with schedulable snapshot and replication tasks
- Supports running virtual machines on a remote host
- Supports storage migration to a remote host
- Learn more about the VMM Pro license
Limitations
- Virtual machines can only run on Synology NAS with more than 2 GB of memory
- Virtual machine data can only be stored on Btrfs volumes
- Importing/Exporting virtual machines with vDisks larger than 2 TB is not supported
- When the virtual machine firmware is UEFI, the maximum resolution is 800×600
- Virtual DSM does not support the features below:
- USB passthrough
- Control Panel: External Device, Hardware & Power
- Network functions, including wireless dongles, MTU, and LACP
- Without a Virtual DSM license, each host can only run 1 Virtual DSM. The recommended number of Virtual DSM that can run on a host varies by models
- Refer to this page for the list of Synology NAS models supporting Virtual Machine Manager
- Each host in the same cluster must have a unique static IP address
- The High Availability feature is only supported in VMM clusters consisting of more than 3 hosts
- When the feature is enabled, virtual machines can only be moved between active and passive servers
- Web VNC console browser requirements:
- Chrome
- Firefox
- Edge
- Internet Explorer 11
- Safari 10 or above
- Virtual Machine Manager 2.5.0-9432 or above is compatible with Synology High Availability version 2.0.3-0140 or above
- Virtual Machine Manager is not compatible with hybrid high-availability clusters
- Virtual Machine Manager will reserve at least one CPU thread for the host in an Synology High Availability cluster
- When Virtual Machine Manager is running in a Synology high-availability cluster:
- There can only be one host in the VMM cluster
- SR-IOV is not supported
Affiliated Utility
Synology Guest Tool for Virtual Machine Manager
Features
- Enhances the compatibility between Windows virtual machines and Virtual Machine Manager, and boosts virtual machine performance
- Protects data with comprehensive snapshot features
Specifications
- System requirements
- Windows 10
- Windows 8.1
- Windows 8
- Windows 7
- Windows Server 2016
- Windows Server 2012 R2
- Windows Server 2008 R2 (Windows Server 2008 only supports Synology Guest Tool 1.4.2)
- Offers VirtIO drivers for Windows, including vDisk drivers and vNICs
- Offers drivers that help with the communication between virtual machines and Synology NAS
- Supports file-system consistent snapshots
Limitations
- Windows Server 2008 virtual machines must restart after Synology Guest Agent is installed
Updated on 18 November, 2024
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