Create backup tasks to protect one or more Microsoft 365 tenants. Customizable settings include:

• Backup scope: Individual user services, sites, or teams
• Automatic discovery and protection of newly added:
  • OneDrive and Exchange user accounts
  • SharePoint sites and personal sites
  • Teams
• Backup modes: Scheduled, manual, and continuous
• Retention policies: Keep versions for a specified period or keep all versions
• Configurable concurrent backup limits for accounts and files to control bandwidth consumption. Maximum limits based on RAM capacity:
  • 2 GB or less: 20
  • 2 GB - 4 GB: 40
  • 4 GB - 16 GB: 50
  • 16 GB or more: 60

Some objects are not backup-compatible or will not be backed up under certain circumstances:

• OneDrive
  • Files or folders whose names or paths contain #SynoVersionRepo, #SynoRepo, or #SynoVersions
  • Files or folders whose DSM paths exceed 4,016 characters
  • Files or folders with names that exceed 255 characters on the backup destination
  • Files or folders with names that exceed 143 characters on an encrypted backup destination
  • Files and folders stored in Shared with me
• Mail
  • Public folder mailboxes and on-premises Exchange mailboxes (User mailboxes, shared mailboxes, archive mailboxes, resource mailboxes, and site mailboxes can be backed up.)
  • Reference attachments that link to folders or files in OneDrive for Business or another supported storage location
  • Mail in the Deleted folder when that folder contains contacts or calendars
  • Notes
• Contacts
  • Contacts outside Your contacts, including folder structures, Groups, and Directory
  • Contact lists in Outlook People
  • Contacts in the Deleted folder
• Calendars
  • Events earlier than 1970-01-01 or later than 2070-01-01
  • Calendar folder structures; all calendars are shown under All Calendar
  • Calendars in the Deleted folder
  • Events shared from other calendars
• SharePoint
  • SharePoint site permission settings (Document-library permission settings can be backed up.)
  • Unsearchable SharePoint sites (How to make a SharePoint site searchable)
  • Lookup and Person or Group columns
  • Survey Options for surveys
  • User interface elements in a non-default language on SharePoint sites, including titles and descriptions of sites, lists, and columns
  • List and document library settings:
    • Document Version History (document library)
    • Item Version History (list)
    • Document Template (document library)
    • Opening Documents in the Browser (document library)
    • Custom Send to Destination (document library)
    • Site Assets Library (document library)
    • Dialogs
    • Automatic Index Management
    • Validation Settings
    • Audience Targeting Settings
    • Rating Settings
    • RSS Settings
    • Content Type
• Teams
  • Teams in Microsoft 365 operated by 21Vianet
  • 1-on-1 chat
  • Private channel settings
  • The following settings of public teams and channels:
    • Team pictures
    • Team codes
    • Tags
    • Apps that are not stored in SharePoint (e.g., Survey)
    • Analytics

Administrators and end users can sign in to the Recovery Portal with different levels of access to backup data.

• Administrator or restore privileges: Restore or export backup data for all users.
• End users: Restore or export only their own backup data.
  • Portal sign-in: End users can sign in to the Recovery Portal using their Microsoft 365 credentials when the Synology NAS is joined to Microsoft Entra Domain Services.

• OneDrive
  • Supports restoration of selected files/folders in directories, including their file sharing permissions.
  • Supports exporting individual files or folders.
  • Supports searching by file name.
• Mail
  • Supports restoration of selected emails, individual email folders, and entire accounts/archive mailboxes.
  • Supports exporting selected emails, individual email folders, and entire accounts/archive mailboxes as .eml or .pst files.
  • Supports previewing email content before restoring or exporting.
  • Supports searching by sender, recipient, subject, date, or email body and attachment content. Supported attachment file types include:
    • .page/.key/.numbers
    • .rtf
    • Microsoft Office formats (e.g., .docx/.doc,.pptx/.ppt), except Microsoft Excel formats (.xlsx/.xls)
    • Text files (e.g., .cpp, .c, .txt)
    • .epub
    • .lit
    • .mobi/.azw3/.pdb/.prc
    • .pdf
    • .rar
    • .chm
    • .slk/.gnumeric
    • .eml/.msg
    • .7z/.bz2/.gz/.zip/.tgz/.tbz/.tar
• Contacts
  • Supports restoration of selected contacts.
  • Supports exporting selected contacts as .csv files.
  • Supports previewing contact information before restoring or exporting.
  • Supports searching by email address.
• Calendar
  • Supports restoration of selected calendar events.
  • Supports exporting selected calendar events as .ics files.
  • Supports searching by organizer, title, or location.
• SharePoint
  • Supports restoration of selected document libraries and lists, including document-library sharing permissions.
  • Supports exporting selected document libraries.
  • Supports searching document libraries, lists, and files by title, description, and content.
• Teams
  • Supports restoration of selected posts and team/channel members along with their permissions. Multiple posts across channels can be restored in .html format.
  • Supports exporting selected posts across channels as .html files.
  • Supports previewing post content before restoring or exporting.
  • Supports searching by author, content, date, and whether or not it contains a conversation thread.

• Unsupported scenarios:
  • Cross-tenant restoration
  • Restoration of OneDrive items whose filenames are permission
  • Restoration of SharePoint folders or files when the restored path exceeds 400 characters
• Content search limitations:
  • Regular expressions are not supported.
  • Emojis are not supported.
  • Symbols such as @, #, *, /, \, and punctuation such as !, ?, and : are not supported.
  • Birthday and Anniversary fields in Contacts are not searchable.
  • Dates and numbers in SharePoint Online are not searchable.
  • The following stop words are ignored regardless of case: a, an, and, are, as, at, be, but, by, for, if, in, into, is, it, no, not, of, on, or, such, that, the, their, then, there, these, they, this, to, was, will, and with.