Active Backup for Microsoft 365

Active Backup for Microsoft 365

Take complete control over Microsoft 365 data with an on-premises backup solution to protect your data in Exchange Online, OneDrive for Business, SharePoint Online, and Teams.

Comprehensive Microsoft 365 backup 

Secure your Teams, SharePoint Online, Exchange Online, and OneDrive for Business with an on-premises Microsoft 365 backup solution.

  • OneDrive for Business : Data and its corresponding metadata, such as last modified time and sharing permissions, are both supported for backup.
  • SharePoint Online : Run continuous local backups to secure SharePoint Online site collections, documents, libraries, and lists, and instantly restore SharePoint data in the event of an outage.
  • Exchange Online : Back up Microsoft 365 personal mailboxes, shared mailboxes, archive mailboxes, and Microsoft 365 group mailboxes, along with their folders, folder structures, and attachments. Contacts and (group) calendars can also be backed up.
  • Microsoft Teams : Protect your Microsoft Teams data including files, attached files, Wikis, and OneNote Notebook.

Unlimited backups. No license necessary.

Active Backup for Microsoft 365 is a free add-on application coming with your Synology NAS. Select an ideal Synology NAS to back up unlimited user accounts, as long as storage capacity allows – completely free of licenses.

Your NAS, your control

Businesses can enable continuous backup to minimize the risk of data loss while flexibly preserving backup versions by setting a specific time period for file retention.

Continuous backup 

Continuous backup allows businesses to back up users' services in a non-stop manner, thereby minimizing the risk of data loss.

Flexible file versioning 

If changes are made, data will be backed up. When a backed-up file is updated to a new version, its previous version will be preserved for the period of time you set for file retention, so that at least the previous version will be available for restoration.

Storage efficiency

Minimize required storage space with single instancing and block-level deduplication, so that identical items will only be stored to Synology NAS once.


Go beyond public cloud's native recovery capabilities and default retention period. Save time with instant search and perform granular recovery of an individual object – whenever you need it.

Granular recovery

Content search

Data export

Self-service portal

  • Granular restore of Microsoft 365 data, including an entire mail folder, emails, SharePoint sites, document libraries, and lists. Retain the original access permissions when restoring files and folders in OneDrive and SharePoint document libraries.

  • Use keywords to filter and preview your backup data with instant content search, even including mail attachments.

  • Export your mails, contacts, and calendars in eml, csv, and isc format respectively, while OneDrive data and mail attachments can be exported in Office file formats.

  • Log into the self-service recovery portal with your Microsoft 365 credentials, enabled by joining Synology NAS to Microsoft Azure AD.

Frequently Asked Questions

  • Which Microsoft 365 platform services are supported?

      Microsoft 365, Microsoft 365 Germany, and Microsoft 365 operated by 21 Vianet are supported.

    Which Microsoft 365 plans are supported?

      Business, Enterprise, and Education, and Exchange Online are supported.

    Are there any NAS limitations or requirements?

      Yes, a NAS device running DSM 6.1-15217 or above is required and only x64 Synology NAS servers and the Btrfs file system are supported (if using deduplication technology). Find compatible models here.

    Does Active Backup for Microsoft 365 support Microsoft Teams?

      Active Backup for Microsoft 365 is able to protect the Teams data stored in OneDrive for Business and SharePoint Online.

    Are there any license requirements or maximum account limits?

      No, it's completely license-free without limits to the maximum number of accounts. However, if the number exceeds 500, we recommend you reach out to our sales team for a consultation.

Watch the video

Learn how to create Microsoft 365 & Google Workspace backup tasks & restore data easily.

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Not sure which Synology NAS is best for your backup environment? Contact us and we will make a recommendation for you.

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License-free for unlimited Microsoft 365 backups