Release Notes for Active Backup for Microsoft 365

Version: 2.5.5-2834

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Fixed Issues

1. Fixed an issue where backing up Teams tabs might fail.
2. Fixed an issue where restoring Teams standard channels to new destinations might fail to complete due to continuous creation of new teams.
3. Fixed an issue where backing up OneDrive or SharePoint data might generate inaccurate backup logs due to DNS abnormalities.
4. Fixed an issue where backing up OneDrive sharing permissions might slow down the backup speed.
5. Fixed an issue where backing up OneDrive might fail.
6. Fixed an issue where backing up mails might fail due to non-mail items in the "Deleted Items" folder.

Version: 2.5.4-2830

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Fixed Issues

1. Fixed an issue where making multiple changes to new files in SharePoint site might result in backup duplicates.
2. Fixed an issue where moving files in a SharePoint site might cause backup failure.

Version: 2.5.3-2828

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Important Note

1. Microsoft's API does not support backing up SharePoint sites created by Microsoft Loop.

Fixed Issues

1. Fixed an issue where backing up SharePoint sites with large amounts of backup data might disable the recovery portal.
2. Fixed an issue where the system might misidentify sites as "locked", causing backup failures and incorrect display of the site list.
3. Fixed an issue where SharePoint and OneDrive backups might fail due to temporary API errors from Microsoft.
4. Fixed an issue where backing up OneNote files in a SharePoint document library might fail.
5. Fixed an issue where SharePoint site backups might be very slow.
6. Fixed an issue where Exchange mail backups might fail if there are version corruptions due to abnormal power outages.
7. Fixed an issue where backups might fail if there are special characters in group emails.
8. Fixed an issue where Exchange mail backups might fail due to unexpected API error responses from Microsoft.
9. Fixed an issue where backup tasks for Exchange group mails might be stuck.
10. Fixed an issue where the package might be stopped when backing up Teams.
11. Fixed an issue where the backup speed might be very slow due to the system placing backup files in the incorrect directory.
12. Fixed an issue where the status might be stuck on "Preparing" due to excessive export time.

Version: 2.5.2-2818

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What's New

1. Increased the maximum number of emails to export. Export tasks of more than 1,000 emails will be executed in the background. When the files are ready, users can download them via the links provided.

Fixed Issues

1. Fixed an issue where sites with a large amount of data might not be backed up or their backup versions could not be browsed.
2. Fixed an issue where site files might be renamed when exported.
3. Fixed an issue where backups might fail if any email exceeded the size limit.
4. Fixed an issue where the package might be stopped in the event of a power failure.
5. Fixed an issue where logs would display system errors for calendar backups.
6. Fixed an issue where Teams backup versions might not be rotated.
7. Fixed an issue where the package might be stopped when backing up Teams if any sticker was in an unusual format.
8. Fixed an issue where the package might be stopped when backing up Teams messages with a certain type of cards.
9. Fixed an issue where Teams channel backups might fail when downloading specific stickers.

Version: 2.5.1-2814

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1. This version has been recalled due to some issues that need to be fixed.

Version: 2.5.0-2739

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What's New

1. Supports user delegation to grant non-admin users package operation permissions.
2. Supports exporting mail folders, account mailboxes, and group mailboxes into an EML file.
3. Supports exporting emails in PST format.
4. Supports exporting logs, task history, and detailed information into a CSV file.
5. Supports advanced search and offers several sorting options on the Task List page.
6. Supports deleting a backup task along with its backup data.
7. Increased the maximum number of accounts or files to back up concurrently:
   -4 GB - 16 GB: 50
   -16 GB or more: 60
   

Fixed Issues

1. Improved backup performance by adjusting the version and index structures.
2. Fixed an issue where backups might take too long if a SharePoint site contained a large amount of data.
3. Fixed an issue where backups of a SharePoint site list might fail if the list contained any special characters.
4. Fixed an issue where users might not be able to create backup tasks when there was a large number of SharePoint sites.
5. Fixed an issue where backup tasks couldn't be created when there was a large number of groups.
6. Fixed an issue where backing up a large OneNote file might fail.
7. It's no longer supported to move encrypted shared folders used by the package to another volume because this may result in the loss of backup versions.
8. Fixed an issue where backups might fail if any Teams stickers couldn't be retrieved due to an error on Microsoft's end.

Version: 2.4.1-2688

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Fixed Issues

1. Fixed an issue where site backups might fail if the SharePoint domain name was changed.
2. Fixed an issue where file names might be unrecognizable when users downloaded SharePoint files from Recovery Portal.
3. Fixed an issue where backing up standard channels in Teams might fail.
4. Fixed an issue where backing up unlicensed/external accounts or accounts that had not signed in to OneDrive might fail.

Version: 2.4.0-2686

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Important Note

1. Backups of Microsoft Teams are not supported in Microsoft 365 operated by 21Vianet due to Microsoft limitations.

What's New

1. Supports backing up posts in Microsoft Teams.
2. Supports deleting backup data in batch through Storage Management.
3. Supports automatically creating Azure AD applications to run backup tasks.
4. Supports backing up and restoring mails of meeting response and meeting cancellation.

Fixed Issues

1. Fixed an issue where backing up certain emails with invitation events might fail with errors.
2. Fixed an issue where mail and calendar backups of certain accounts might fail because the email addresses from the Microsoft server were incorrect.
3. Fixed an issue of backup failures due to unstable network connection.
4. Fixed an issue where backup speed might drop due to the poor write performance of hard drives.
5. Fixed an issue where continuous backups might fail and the package might be stopped because the system did not detect insufficient space.
6. Fixed an issue where backups might fail and the package might be stopped when backing up deleted group inboxes.
7. Fixed an issue where renaming a domain might cause site backups to fail if the new name was not updated to the backup list.
8. Improved the performance of mail backups by adjusting the database access mechanism.
9. Fixed an issue where backup tasks might be stuck when the site file path provided by the Microsoft server did not match the one on Microsoft 365.
10. Fixed an issue where restoring SharePoint lists of the "Issue Tracker" type might fail.
11. Fixed an issue where package updates might fail.
12. Fixed an issue where mail backups couldn't complete due to unexpected responses from the Microsoft API.
13. Fixed an issue where backup tasks for relinking might not be found.
14. Fixed an issue where restarting the package while upgrading might cause an upgrade failure.
15. Fixed an issue where database upgrade might fail when any file or folder name contained certain symbols.
16. Fixed an issue where backups might fail when the Microsoft API returned incorrect fields of Synology Drive.

Version: 2.3.1-2532

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Important Note

1. Active Backup for Microsoft 365 ends support for the Germany endpoint to comply with the migration of Microsoft 365 Germany to Microsoft 365 Global.

What's New

1. Supports filtering out unlicensed or external accounts through auto-discovery.
2. Supports restoring OneDrive files to their original folders with options to overwrite or skip existing items.
3. Supports restoring all mails in the search result.
4. Supports setting the maximum number of accounts and files to back up simultaneously. The actual number may vary depending on the RAM capacity.
   The recommended maximum values based on the RAM capacity are:
   -Less than 2 GB: 20
   -Between 2 GB and 4 GB: 40
   -4 GB or more: 50
   

Fixed Issues

1. Fixed an issue where a backup task might fail because of an authorization error when backing up SharePoint sites.
2. Fixed an issue where a backup task might be stuck when backing up group mails.
3. Fixed an issue where the auto-discovery service could not fully update the SharePoint site list when a blocked site was detected.
4. Fixed an issue where a backup task might fail when backing up Outlook's Deleted folder that contained calendar or contact data.
5. Fixed an issue where the package might stop due to a full quota or insufficient space in the shared folder.
6. Fixed an issue where users might not be able to browse backup versions when there were too many lists or document libraries on a site.
7. Improved the progress display by providing the processed item count.
8. Fixed an issue where the preparation time of a backup task might take too long when the number of SharePoint subsites changed frequently.
9. Fixed an issue where a mail directory with more than 5,000 mails might not be backed up properly.
10. Fixed an issue where a backup task might be stuck when backing up a SharePoint site with more than 4,000 files.
11. Fixed an issue where Snapshot Replication might not work when there were too many backup files.
12. Fixed an issue where mail backups might take longer than usual due to the rescanning of each backup item.

Version: 2.3.0-2531

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Important Note

1. This update has been recalled on January 18, 2022, since longer backup time is required due to the need to rescan backup items after the upgrade.

Version: 2.2.3-2417

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Fixed Issues

1. Fixed an issue where backup tasks were only partially successful when they contained the mailboxes of unlicensed accounts or external accounts.
2. Fixed an issue where an upgrade failure might occur if users stopped the package during the previous upgrade process.
3. Fixed an issue where backups might fail when there were more than 100 tasks.
4. Fixed an issue where mail backups caused high memory usage.
5. Fixed an issue where backups might fail when mail attributes (e.g., importance label) were corrupted on the Microsoft server.
6. Fixed an issue where users might not be able to create a backup task for a domain with too many accounts.
7. Fixed an issue where restoring a large number of OneDrive files might fail.
8. Fixed an issue where mail backups might fail when the server returned a "TokenExpired" error.
9. Fixed the backup failures of archive mailboxes by replacing the Microsoft Graph API with the Microsoft Exchange Web Services (EWS) API.

Limitations

1. Active Backup for Microsoft 365 requires DSM 6.2.2-24922 or above.

Version: 2.2.1-2324

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Important Note

1. The package is renamed to Active Backup for Microsoft 365 to comply with the name change of Office 365 to Microsoft 365.
2. The authentication mechanism for new backup task creation has been switched to using custom Azure applications to enhance security and avoid API throttling during the backup process.

What's New

1. Added support for relinking backup tasks and data stored on a Synology NAS.
2. Added support for backing up and restoring the following group types: Microsoft 365 Groups, Distribution Lists, Security Groups, and Mail-enabled Security Groups.
3. Added support for restoring entire mailboxes.
4. Added support for backing up SharePoint application sites.
5. Refined the backup status to speed up troubleshooting.
6. Added support for restoring mails to their original folders with options to overwrite/skip existing items.
7. Added support for displaying progress percentage for ongoing backup tasks.
8. Added support for restoring group mailboxes and group calendars to user accounts.

Fixed Issues

1. Fixed the issue where a mail backup might fail when the attributes of some mails corrupted on the server side.
2. Fixed the issue where a contact backup might fail when the server returned "ErrorContentConversionFailed".
3. Fixed the issue where backup tasks might not work properly with limited Internet connectivity.
4. Fixed the issue where retention policies and auto-discovery services might not work properly when there were multiple backup tasks.
5. Fixed the issue where a mail backup might fail when a backup list contained an account without a valid Exchange license.
6. Fixed the issue where SharePoint sites might not display properly in a backup list owing to server errors.
7. Fixed the issue where a backup task might fail when the URL of a SharePoint site got modified during the backup process.
8. Fixed the issue where backing up a SharePoint site with more than 5,000 items in the first layer of files might fail.
9. Fixed the issue where a backup task might loop endlessly when the hash value of a file provided by the Microsoft 365 server was incorrect.
10. Fixed the issue where a database error might trigger an incorrect error message indicating insufficient storage space, which caused the backup to stop.
11. Fixed the issue where DSM-related operations, such as sending backup result notifications and renaming users or shared folders might cause the package to become unresponsive.
12. Fixed the issue where on-premises SharePoint sites might be listed in the backup list.

Version: 2.1.3-0792

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Fixed issues

1. Decreased the possibility of SharePoint API throttling errors by reducing the number of SharePoint API requests.
2. Fixed the issue where SharePoint backup might fail owing to a temporary server error or connection error that occurs during the backup task creation.
3. Fixed the issue where the backup of calendar events with a large number of attachments might easily encounter throttling.
4. Fixed the issue where slow server response might cause SharePoint backup failures by extending the timeout limit.
5. Fixed the issue where the backup of emails containing a large number of invalid HTML tags might cause high memory usage and that the package might become unresponsive.
6. Fixed the issue where fragmented free space caused by email backup in Btrfs volumes might affect storage utilization.
7. Fixed the issue where an error occurs when emails being backed up have an attachment named "not supported calendar message.ics".
8. Fixed the issue where an error occurs when the mail backup list consists of accounts hosted by an on-premise or non-Exchange server (eg., external users).
9. Fixed the issue where Exchange archive mailboxes might not be backed up correctly.

Version: 2.1.3-0791

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Important Note

1. This version is replaced by Active Backup for Microsoft 365 2.1.3-0792 to fix an issue.

Version: 2.1.3-0790

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Important Note

1. This version is replaced by Active Backup for Microsoft 365 2.1.3-0792 to fix several issues.

Version: 2.1.2-0778

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Fixed issues

1. Fixed an issue where a mail backup task of an account might fail when the content of the remote mail is damaged.
2. Fixed an issue where backing up a SharePoint Online site might fail when containing application sites.
3. Fixed an issue where backup tasks might fail due to abnormal network connection when changing Synology NAS network connection after activating the package.
4. Fixed an issue where backing up SharePoint Online services might loop endlessly when the hash value of the file provided by the Office 365 server is incorrect.
5. Fixed an issue where restoration of contact information might fail when the contact’s email is blank.

Limitation

1. This version does not support text search of excel file extensions.

Version: 2.1.1-0772

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Fixed issues

1. Refine the notification frequency for continuous backup.
2. Fixed the issue where backing up OneDrvie might loop endlessly when the API returns wrong file sizes.
3. Fixed the timeout issue during the backup of Calendar.
4. Fixed the issue where backing up attachments of Calendar might fail when the API returns an unexpected error message.
5. Fixed the issue where backing up the Mail service might loop endlessly when the API returns an unexpected error message.
6. Fixed the issue where backup tasks might keep failing after an abnormal crash.
7. Fixed the issue where updating Active Backup for Office 365 might keep failing after an abnormal crash.
8. Fixed the issue where backing up the SharePoint Online services might fail when the backup task includes a site created by Azure Bot Service.
9. Fixed an issue where a SharePoint document library might be ignored in the backup task when the library is moved from one site to another.
10. Fixed the issue where backing up a SharePoint Online site might fail when the API returns duplicated list names.
11. Fixed the issue where an email attachment might fail to be restored when it is an EML file.
12. Fixed the issue where a backup task might need to re-authenticate during the backup of SharePoint Online sites.
13. Fixed the issue where restoration of a site list might fail when a column name conflicts with another column within the same list.
14. Fixed the issue where backing up a SharePoint Online site might fail during the second-time backup when two document libraries in the site exchange the names.
15. Fixed the issue where creating a backup task containing the SharePoint Online services might time out when there is a large amount of user accounts.
16. Fixed the issue where exporting a large amount of files might fail owing to the timeout.
17. Fixed the issue where backing up the SharePoint Online services might fail when the API returns duplicated URLs of sites.
18. Fixed the issue where backing up the SharePoint Online services might fail when the backup task includes a site being locked.
19. Fixed the issue where DSM domain users might fail to manipulate the backup data on the self-service recovery portal.

Limitation

1. This version does not support changing the volume of a backup destination.
2. This version does not support the ext3 file system.

Version: 2.1.0-0694

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What's new

1. Supports backing up SharePoint, including document libraries and lists.
2. Supports selecting multiple files when restoring or exporting files of OneDrive and SharePoint.
3. Supports restoring a whole mail folder.
4. Supports single instancing on the ext4 file system.
5. Enhanced performance by reducing the frequency of issuing DNS requests.
6. Enhanced performance of backing up OneDrive by reducing the number of API calls.
7. Reduced the response time of user interfaces when there are a large number of users in the backup list.
8. Enhanced performance of restoring OneDrive, Mail, Calendar, Contacts, and SharePoint by multithreading.
9. Enhanced the performance of backup comprehensively.
10. Enhanced performance by reducing the number of small files.

Fixed issues

1. Refined error messages for clearer indications.
2. Supports preserving the latest version of deleted data.
3. Supports resuming backup tasks when the problems of network connection are solved.
4. Fixed an issue where backing up the attachments of mails with null Content-ID might fail.
5. Fixed an issue where backing up OneDrive might fail when the API returns a negative value of file size.
6. Fixed an issue where backing up Calendar might fail when there is an attachment over 50MB.
7. Fixed an issue where backup tasks might fail when there is a user not enabling his/her OneDrive service.
8. Fixed an issue where backing up emails might fail when the Office 365 server returns a message that there is an invalid email.
9. Fixed the timeout issue when backing up Calendar.
10. Fixed an issue where backing up Calendar might fail because of duplicated calendar records generated from the incorrect shutdown of a server.
11. Fixed an issue where a task of backing up OneDrive cannot be completed when the OneDrive server reports an incorrect file size of a OneNote file.
12. Fixed an issue where backing up Calendar might fail when calendar files contain deleted attachments.
13. Fixed an issue where renaming folders that contain large files during backing up might consume too much memory of the Synology NAS.
14. Fixed an issue where backup tasks might fail when a user’s mail account is renamed.
15. Fixed an issue where backing up the Mail service might fail when the Office 365 server is busy.
16. Fixed an issue where updating Active Backup for Office 365 might keep failing after an unusual interruption.

Version: 2.0.4-0497

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What's New

1. Added support for backing up root folder in Exchange.
2. Added support for archive mailboxes.
3. Added package activation process.
4. Removed license requirement.

Fixed issues

1. Fixed an issue where backing up a large mail might fail.
2. Fixed an issue where information of Active Backup for Office 365 Portal might fail to be displayed due to same username with different domain under an Office 365 tenant.
3. Fixed an issue where backing up deleted contacts or calendar events within deleted mail folders might fail
4. Fixed an issue where restoring mails with large attachments might fail.
5. Fixed an issue where backing up calendar might fail when the attachment contains deleted calendars events.

Version: 2.0.3-0462

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What’s new

1. Enhanced the performance of single instancing.
2. Enhanced the performance when browsing backup versions in Active Backup for Office 365 Portal.
3. Enhanced the performance of data verification in OneDrive for Business.

Fixed issue

1. Reduced the possibility of OneDrive for Business run-time error 429 to enhance backup performance.
2. Fixed an issue where an email with mail attachment's name longer than 143 characters might failed to be backed up.
3. Fixed an issue when performing content search for mail and calendar attachment, package might crash.
4. Fixed an issue where mail or calendar data with .7z attachment might failed to be backed up.
5. Fixed an issue where mail or calendar data with content type message/rfc822 attachment might failed to be backed up.
6. Fixed an issue where group calendar might failed to be backed up when group calendar ID was changed.
7. Minor bug fixes.

Version: 2.0.2-0427

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What's new 

1. Supports backing up Office 365 mail, contacts, and calendar services on Office 365, Office 365 Germany, and Office 365 operated by 21Vianet.
2. Supports backing up Office 365 operated by 21Vianet OneDrive for Business service.
3. Supports granular restoration of mail, mail attachments, contacts, calendar events, and calendar attachments.
4. Supports content search for filtering out emails, mail attachments, contacts, calendars, and calendar attachments that contains search keywords.
5. Supports previewing email content and detailed contact info.
6. Supports exporting mail, contacts, and calendar data in the eml, csv, and ics formats respectively.
7. Supports continuous, manual, and scheduled backup for mail, contacts, and calendar protection.
8. Supports account discovery for mail, contacts, and calendar protection.
9. Supports single instancing for mail and calendar attachments.
10. Enriched the design of the overview page and Active Backup for Office 365 Portal.
11. Enhanced the performance for Office 365 service backup.
12. Added support for deleting users' backup data.

Fixed issues

1. Fixed an issue where backup tasks might fail when email contains invalid charset.
2. Fixed an issue where backing up a large folder with files had been deleted might consume too much memory.
3. Fixed a security issue to prevent cross-site scripting (XSS) attacks.

Version: 1.0.5-0142

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Thai user interface is now available.

Version: 1.0.4-0134

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Fixed issue

1. Fixed an issue where backup data might not inherit ACL permissions.
2. Fixed an issue where backup tasks might fail when files to be backed up are modified after the tasks have been triggered.
3. Fixed an issue where backup tasks might fail when too many requests are being processed (http status code 429).

Version: 1.0.3-0125

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Fixed issues

1. Fixed an issue where the backup version of a file might not be deleted when the file is deleted from a renamed folder on Office 365. 
2. Fixed an issue where selecting/deselecting users for backup on the task creation and edit page might cause browsers to be unresponsive when a task contains a large amount of users. 
3. Minor bug fixes.

Version: 1.0.2-0123

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What’s new

1. Supports backing up OneDrive for Business data as well as corresponding metadata/sharing permission stored on Office 365 to Synology NAS.

2. Supports restoring data and corresponding metadata all together to Office 365.

3. Supports data download to local destinations.

4. Supports automatic detection and backup of new accounts with account discovery. 

5. Supports continuous, manual, and scheduled backup.  

6. Supports single instancing and block-level deduplication to enhance storage efficiency.

7. Supports easy restoration with Active Backup for Office 365 Portal.

8. Supports email notification.

Note:

1. Active Backup for Office 365 is supported on x64 Synology NAS servers.     
2. Office 365 and Office 365 Germany are supported (excluding Office 365 China/Government plans).

Version: 2.5.5-14034

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Fixed Issues

1. Fixed an issue where backing up Teams tabs might fail.
2. Fixed an issue where restoring Teams standard channels to new destinations might fail to complete due to continuous creation of new teams.
3. Fixed an issue where backing up OneDrive or SharePoint data might generate inaccurate backup logs due to DNS abnormalities.
4. Fixed an issue where backing up OneDrive sharing permissions might slow down the backup speed.
5. Fixed an issue where backing up OneDrive might fail.
6. Fixed an issue where backing up mails might fail due to non-mail items in the "Deleted Items" folder.

Version: 2.5.5-12834

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Fixed Issues

1. Fixed an issue where backing up Teams tabs might fail.
2. Fixed an issue where restoring Teams standard channels to new destinations might fail to complete due to continuous creation of new teams.
3. Fixed an issue where backing up OneDrive or SharePoint data might generate inaccurate backup logs due to DNS abnormalities.
4. Fixed an issue where backing up OneDrive sharing permissions might slow down the backup speed.
5. Fixed an issue where backing up OneDrive might fail.
6. Fixed an issue where backing up mails might fail due to non-mail items in the "Deleted Items" folder.

Version: 2.5.5-2834

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Fixed Issues

1. Fixed an issue where backing up Teams tabs might fail.
2. Fixed an issue where restoring Teams standard channels to new destinations might fail to complete due to continuous creation of new teams.
3. Fixed an issue where backing up OneDrive or SharePoint data might generate inaccurate backup logs due to DNS abnormalities.
4. Fixed an issue where backing up OneDrive sharing permissions might slow down the backup speed.
5. Fixed an issue where backing up OneDrive might fail.
6. Fixed an issue where backing up mails might fail due to non-mail items in the "Deleted Items" folder.

Version: 2.5.4-14030

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Fixed Issues

1. Fixed an issue where making multiple changes to new files in SharePoint site might result in backup duplicates.
2. Fixed an issue where moving files in a SharePoint site might cause backup failure.

Version: 2.5.4-12830

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Fixed Issues

1. Fixed an issue where making multiple changes to new files in SharePoint site might result in backup duplicates.
2. Fixed an issue where moving files in a SharePoint site might cause backup failure.

Version: 2.5.4-2830

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Fixed Issues

1. Fixed an issue where making multiple changes to new files in SharePoint site might result in backup duplicates.
2. Fixed an issue where moving files in a SharePoint site might cause backup failure.

Version: 2.5.3-14028

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Important Note

1. Microsoft's API does not support backing up SharePoint sites created by Microsoft Loop.

Fixed Issues

1. Fixed an issue where SharePoint's Autodiscover service might be interrupted and cause incorrect updates to the site list.
2. Fixed an issue where the system might misidentify sites as "locked", causing backup failures and incorrect display of the site list.
3. Fixed an issue where logs might display incorrect numbers of restored SharePoint lists and document library items.
4. Fixed an issue where backing up SharePoint sites with large amounts of backup data might disable the recovery portal.
5. Fixed an issue where SharePoint site backups might be very slow.
6. Fixed an issue where SharePoint and OneDrive backups might fail due to temporary API errors from Microsoft.
7. Fixed an issue where backing up OneNote files in a SharePoint document library might fail.
8. Fixed an issue where backing up Exchange search folders might fail.
9. Fixed an issue where Exchange mail backups might fail if there are version corruptions due to abnormal power outages.
10. Fixed an issue where backups might fail if there are special characters in group emails.
11. Fixed an issue where Exchange mail backups might fail due to unexpected API error responses from Microsoft.
12. Fixed an issue where backup tasks for Exchange group mails might be stuck.
13. Fixed an issue where Teams backups might fail if there are unexpected API error responses from Microsoft.
14. Fixed an issue where backing up stickers in Teams might fail.
15. Fixed an issue where the package might be stopped when backing up Teams.
16. Fixed an issue where the backup speed might be very slow due to the system placing backup files in the incorrect directory.
17. Fixed an issue where the status might be stuck on "Preparing" due to excessive export time.

Version: 2.5.3-12828

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Important Note

1. Microsoft's API does not support backing up SharePoint sites created by Microsoft Loop.

Fixed Issues

1. Fixed an issue where backing up SharePoint sites with large amounts of backup data might disable the recovery portal.
2. Fixed an issue where the system might misidentify sites as "locked", causing backup failures and incorrect display of the site list.
3. Fixed an issue where SharePoint and OneDrive backups might fail due to temporary API errors from Microsoft.
4. Fixed an issue where backing up OneNote files in a SharePoint document library might fail.
5. Fixed an issue where SharePoint site backups might be very slow.
6. Fixed an issue where Exchange mail backups might fail if there are version corruptions due to abnormal power outages.
7. Fixed an issue where backups might fail if there are special characters in group emails.
8. Fixed an issue where Exchange mail backups might fail due to unexpected API error responses from Microsoft.
9. Fixed an issue where backup tasks for Exchange group mails might be stuck.
10. Fixed an issue where the package might be stopped when backing up Teams.
11. Fixed an issue where the backup speed might be very slow due to the system placing backup files in the incorrect directory.
12. Fixed an issue where the status might be stuck on "Preparing" due to excessive export time.

Version: 2.5.3-2828

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Important Note

1. Microsoft's API does not support backing up SharePoint sites created by Microsoft Loop.

Fixed Issues

1. Fixed an issue where backing up SharePoint sites with large amounts of backup data might disable the recovery portal.
2. Fixed an issue where the system might misidentify sites as "locked", causing backup failures and incorrect display of the site list.
3. Fixed an issue where SharePoint and OneDrive backups might fail due to temporary API errors from Microsoft.
4. Fixed an issue where backing up OneNote files in a SharePoint document library might fail.
5. Fixed an issue where SharePoint site backups might be very slow.
6. Fixed an issue where Exchange mail backups might fail if there are version corruptions due to abnormal power outages.
7. Fixed an issue where backups might fail if there are special characters in group emails.
8. Fixed an issue where Exchange mail backups might fail due to unexpected API error responses from Microsoft.
9. Fixed an issue where backup tasks for Exchange group mails might be stuck.
10. Fixed an issue where the package might be stopped when backing up Teams.
11. Fixed an issue where the backup speed might be very slow due to the system placing backup files in the incorrect directory.
12. Fixed an issue where the status might be stuck on "Preparing" due to excessive export time.

Version: 2.5.2-14010

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Compatibility and Installation

1. Active Backup for Microsoft 365 2.5.2-14010 requires DSM 7.2 and above.

Version: 2.5.2-12818

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What's New

1. Increased the maximum number of emails to export. Export tasks of more than 1,000 emails will be executed in the background. When the files are ready, users can download them via the links provided.

Fixed Issues

1. Fixed an issue where sites with a large amount of data might not be backed up or their backup versions could not be browsed.
2. Fixed an issue where the site backup speed might be very slow due to Microsoft API issues.
3. Fixed an issue where site files might be renamed when exported.
4. Fixed an issue where site backup data could not be browsed if any user account was deleted once and then recreated.
5. Fixed an issue where backups might fail if any email exceeded the size limit.
6. Fixed an issue where the package might be stopped in the event of a power failure.
7. Fixed an issue where logs would display system errors for calendar backups.
8. Fixed an issue where Teams backup versions might not be rotated.
9. Fixed an issue where the package might be stopped when backing up Teams if any sticker was in an unusual format.
10. Fixed an issue where the package might be stopped when backing up Teams messages with a certain type of cards.
11. Fixed an issue where Teams channel backups might fail when downloading specific stickers.

Version: 2.5.2-2818

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What's New

1. Increased the maximum number of emails to export. Export tasks of more than 1,000 emails will be executed in the background. When the files are ready, users can download them via the links provided.

Fixed Issues

1. Fixed an issue where sites with a large amount of data might not be backed up or their backup versions could not be browsed.
2. Fixed an issue where site files might be renamed when exported.
3. Fixed an issue where backups might fail if any email exceeded the size limit.
4. Fixed an issue where the package might be stopped in the event of a power failure.
5. Fixed an issue where logs would display system errors for calendar backups.
6. Fixed an issue where Teams backup versions might not be rotated.
7. Fixed an issue where the package might be stopped when backing up Teams if any sticker was in an unusual format.
8. Fixed an issue where the package might be stopped when backing up Teams messages with a certain type of cards.
9. Fixed an issue where Teams channel backups might fail when downloading specific stickers.

Version: 2.5.1-12814

---

1. This version has been recalled due to some issues that need to be fixed.

Version: 2.5.1-2814

---

1. This version has been recalled due to some issues that need to be fixed.

Version: 2.5.0-12739

---

What's New

1. Supports user delegation to grant non-admin users package operation permissions.
2. Supports exporting mail folders, account mailboxes, and group mailboxes into an EML file.
3. Supports exporting emails in PST format.
4. Supports exporting logs, task history, and detailed information into a CSV file.
5. Supports advanced search and offers several sorting options on the Task List page.
6. Supports deleting a backup task along with its backup data.
7. Increased the maximum number of accounts or files to back up concurrently:
   -4 GB - 16 GB: 50
   -16 GB or more: 60
   

Fixed Issues

1. Improved backup performance by adjusting the version and index structures.
2. Fixed an issue where backups might take too long if a SharePoint site contained a large amount of data.
3. Fixed an issue where backups of a SharePoint site list might fail if the list contained any special characters.
4. Fixed an issue where users might not be able to create backup tasks when there was a large number of SharePoint sites.
5. Fixed an issue where backup tasks couldn't be created when there was a large number of groups.
6. Fixed an issue where backing up a large OneNote file might fail.
7. It's no longer supported to move encrypted shared folders used by the package to another volume because this may result in the loss of backup versions.
8. Fixed an issue where backups might fail if any Teams stickers couldn't be retrieved due to an error on Microsoft's end.

Version: 2.5.0-2739

---

What's New

1. Supports user delegation to grant non-admin users package operation permissions.
2. Supports exporting mail folders, account mailboxes, and group mailboxes into an EML file.
3. Supports exporting emails in PST format.
4. Supports exporting logs, task history, and detailed information into a CSV file.
5. Supports advanced search and offers several sorting options on the Task List page.
6. Supports deleting a backup task along with its backup data.
7. Increased the maximum number of accounts or files to back up concurrently:
   -4 GB - 16 GB: 50
   -16 GB or more: 60
   

Fixed Issues

1. Improved backup performance by adjusting the version and index structures.
2. Fixed an issue where backups might take too long if a SharePoint site contained a large amount of data.
3. Fixed an issue where backups of a SharePoint site list might fail if the list contained any special characters.
4. Fixed an issue where users might not be able to create backup tasks when there was a large number of SharePoint sites.
5. Fixed an issue where backup tasks couldn't be created when there was a large number of groups.
6. Fixed an issue where backing up a large OneNote file might fail.
7. It's no longer supported to move encrypted shared folders used by the package to another volume because this may result in the loss of backup versions.
8. Fixed an issue where backups might fail if any Teams stickers couldn't be retrieved due to an error on Microsoft's end.

Version: 2.4.1-12688

---

Fixed Issues

1. Fixed an issue where site backups might fail if the SharePoint domain name was changed.
2. Fixed an issue where file names might be unrecognizable when users downloaded SharePoint files from Recovery Portal.
3. Fixed an issue where backing up standard channels in Teams might fail.
4. Fixed an issue where backing up unlicensed/external accounts or accounts that had not signed in to OneDrive might fail.

Version: 2.4.1-2688

---

Fixed Issues

1. Fixed an issue where site backups might fail if the SharePoint domain name was changed.
2. Fixed an issue where file names might be unrecognizable when users downloaded SharePoint files from Recovery Portal.
3. Fixed an issue where backing up standard channels in Teams might fail.
4. Fixed an issue where backing up unlicensed/external accounts or accounts that had not signed in to OneDrive might fail.

Version: 2.4.0-12686

---

Important Note

1. Backups of Microsoft Teams are not supported in Microsoft 365 operated by 21Vianet due to Microsoft limitations.

What's New

1. Supports backing up posts in Microsoft Teams.
2. Supports deleting backup data in batch through Storage Management.
3. Supports automatically creating Azure AD applications to run backup tasks.
4. Supports backing up and restoring mails of meeting response and meeting cancellation.

Fixed Issues

1. Fixed an issue where backing up certain emails with invitation events might fail with errors.
2. Fixed an issue where mail and calendar backups of certain accounts might fail because the email addresses from the Microsoft server were incorrect.
3. Fixed an issue of backup failures due to unstable network connection.
4. Fixed an issue where backup speed might drop due to the poor write performance of hard drives.
5. Fixed an issue where continuous backups might fail and the package might be stopped because the system did not detect insufficient space.
6. Fixed an issue where backups might fail and the package might be stopped when backing up deleted group inboxes.
7. Fixed an issue where renaming a domain might cause site backups to fail if the new name was not updated to the backup list.
8. Improved the performance of mail backups by adjusting the database access mechanism.
9. Fixed an issue where backup tasks might be stuck when the site file path provided by the Microsoft server did not match the one on Microsoft 365.
10. Fixed an issue where restoring SharePoint lists of the "Issue Tracker" type might fail.
11. Fixed an issue where package updates might fail.
12. Fixed an issue where mail backups couldn't complete due to unexpected responses from the Microsoft API.
13. Fixed an issue where backup tasks for relinking might not be found.
14. Fixed an issue where restarting the package while upgrading might cause an upgrade failure.
15. Fixed an issue where database upgrade might fail when any file or folder name contained certain symbols.
16. Fixed an issue where backups might fail when the Microsoft API returned incorrect fields of Synology Drive.

Version: 2.4.0-2686

---

Important Note

1. Backups of Microsoft Teams are not supported in Microsoft 365 operated by 21Vianet due to Microsoft limitations.

What's New

1. Supports backing up posts in Microsoft Teams.
2. Supports deleting backup data in batch through Storage Management.
3. Supports automatically creating Azure AD applications to run backup tasks.
4. Supports backing up and restoring mails of meeting response and meeting cancellation.

Fixed Issues

1. Fixed an issue where backing up certain emails with invitation events might fail with errors.
2. Fixed an issue where mail and calendar backups of certain accounts might fail because the email addresses from the Microsoft server were incorrect.
3. Fixed an issue of backup failures due to unstable network connection.
4. Fixed an issue where backup speed might drop due to the poor write performance of hard drives.
5. Fixed an issue where continuous backups might fail and the package might be stopped because the system did not detect insufficient space.
6. Fixed an issue where backups might fail and the package might be stopped when backing up deleted group inboxes.
7. Fixed an issue where renaming a domain might cause site backups to fail if the new name was not updated to the backup list.
8. Improved the performance of mail backups by adjusting the database access mechanism.
9. Fixed an issue where backup tasks might be stuck when the site file path provided by the Microsoft server did not match the one on Microsoft 365.
10. Fixed an issue where restoring SharePoint lists of the "Issue Tracker" type might fail.
11. Fixed an issue where package updates might fail.
12. Fixed an issue where mail backups couldn't complete due to unexpected responses from the Microsoft API.
13. Fixed an issue where backup tasks for relinking might not be found.
14. Fixed an issue where restarting the package while upgrading might cause an upgrade failure.
15. Fixed an issue where database upgrade might fail when any file or folder name contained certain symbols.
16. Fixed an issue where backups might fail when the Microsoft API returned incorrect fields of Synology Drive.

Version: 2.3.1-12532

---

Important Note

1. Active Backup for Microsoft 365 ends support for the Germany endpoint to comply with the migration of Microsoft 365 Germany to Microsoft 365 Global.

What's New

1. Supports filtering out unlicensed or external accounts through auto-discovery.
2. Supports restoring OneDrive files to their original folders with options to overwrite or skip existing items.
3. Supports restoring all mails in the search result.
4. Supports setting the maximum number of accounts and files to back up simultaneously. The actual number may vary depending on the RAM capacity.
   The recommended maximum values based on the RAM capacity are:
   -Less than 2 GB: 20
   -Between 2 GB and 4 GB: 40
   -4 GB or more: 50
   

Fixed Issues

1. Fixed an issue where a backup task might fail because of an authorization error when backing up SharePoint sites.
2. Fixed an issue where a backup task might be stuck when backing up group mails.
3. Fixed an issue where the auto-discovery service could not fully update the SharePoint site list when a blocked site was detected.
4. Fixed an issue where a backup task might fail when backing up Outlook's Deleted folder that contained calendar or contact data.
5. Fixed an issue where the package might stop due to a full quota or insufficient space in the shared folder.
6. Fixed an issue where users might not be able to browse backup versions when there were too many lists or document libraries on a site.
7. Improved the progress display by providing the processed item count.
8. Fixed an issue where the preparation time of a backup task might take too long when the number of SharePoint subsites changed frequently.
9. Fixed an issue where a mail directory with more than 5,000 mails might not be backed up properly.
10. Fixed an issue where a backup task might be stuck when backing up a SharePoint site with more than 4,000 files.
11. Fixed an issue where Snapshot Replication might not work when there were too many backup files.
12. Fixed an issue where mail backups might take longer than usual due to the rescanning of each backup item.

Version: 2.3.1-2532

---

Important Note

1. Active Backup for Microsoft 365 ends support for the Germany endpoint to comply with the migration of Microsoft 365 Germany to Microsoft 365 Global.

What's New

1. Supports filtering out unlicensed or external accounts through auto-discovery.
2. Supports restoring OneDrive files to their original folders with options to overwrite or skip existing items.
3. Supports restoring all mails in the search result.
4. Supports setting the maximum number of accounts and files to back up simultaneously. The actual number may vary depending on the RAM capacity.
   The recommended maximum values based on the RAM capacity are:
   -Less than 2 GB: 20
   -Between 2 GB and 4 GB: 40
   -4 GB or more: 50
   

Fixed Issues

1. Fixed an issue where a backup task might fail because of an authorization error when backing up SharePoint sites.
2. Fixed an issue where a backup task might be stuck when backing up group mails.
3. Fixed an issue where the auto-discovery service could not fully update the SharePoint site list when a blocked site was detected.
4. Fixed an issue where a backup task might fail when backing up Outlook's Deleted folder that contained calendar or contact data.
5. Fixed an issue where the package might stop due to a full quota or insufficient space in the shared folder.
6. Fixed an issue where users might not be able to browse backup versions when there were too many lists or document libraries on a site.
7. Improved the progress display by providing the processed item count.
8. Fixed an issue where the preparation time of a backup task might take too long when the number of SharePoint subsites changed frequently.
9. Fixed an issue where a mail directory with more than 5,000 mails might not be backed up properly.
10. Fixed an issue where a backup task might be stuck when backing up a SharePoint site with more than 4,000 files.
11. Fixed an issue where Snapshot Replication might not work when there were too many backup files.
12. Fixed an issue where mail backups might take longer than usual due to the rescanning of each backup item.

Version: 2.3.0-12531

---

Important Note

1. This update has been recalled on January 18, 2022, since longer backup time is required due to the need to rescan backup items after the upgrade.

Version: 2.3.0-2531

---

Important Note

1. This update has been recalled on January 18, 2022, since longer backup time is required due to the need to rescan backup items after the upgrade.

Version: 2.2.3-2417

---

Fixed Issues

1. Fixed an issue where backup tasks were only partially successful when they contained the mailboxes of unlicensed accounts or external accounts.
2. Fixed an issue where an upgrade failure might occur if users stopped the package during the previous upgrade process.
3. Fixed an issue where backups might fail when there were more than 100 tasks.
4. Fixed an issue where mail backups caused high memory usage.
5. Fixed an issue where backups might fail when mail attributes (e.g., importance label) were corrupted on the Microsoft server.
6. Fixed an issue where users might not be able to create a backup task for a domain with too many accounts.
7. Fixed an issue where restoring a large number of OneDrive files might fail.
8. Fixed an issue where mail backups might fail when the server returned a "TokenExpired" error.
9. Fixed the backup failures of archive mailboxes by replacing the Microsoft Graph API with the Microsoft Exchange Web Services (EWS) API.

Limitations

1. Active Backup for Microsoft 365 requires DSM 6.2.2-24922 or above.

Version: 2.2.3-12417

---

Compatibility and Installation

1. Updated to be compatible with DSM 7.0.

What's New

1. Supports restoring an entire mailbox.
2. Supports relinking backup tasks and data on a Synology NAS.
3. Supports backing up and restoring the following group types:
   • Microsoft 365 Group (Office 365 Group)
   • Distribution List
   • Security Group
   • Mail-Enabled Security Group
4. Supports backing up SharePoint application sites.
5. Supports restoring emails to their original folders with options to overwrite/skip existing items.
6. Displays progress percentage for backup tasks.
7. Supports restoring group mailboxes and group calendars to user accounts.

Version: 2.2.1-2324

---

Important Note

1. The package is renamed to Active Backup for Microsoft 365 to comply with the name change of Office 365 to Microsoft 365.
2. The authentication mechanism for new backup task creation has been switched to using custom Azure applications to enhance security and avoid API throttling during the backup process.

What's New

1. Added support for relinking backup tasks and data stored on a Synology NAS.
2. Added support for backing up and restoring the following group types: Microsoft 365 Groups, Distribution Lists, Security Groups, and Mail-enabled Security Groups.
3. Added support for restoring entire mailboxes.
4. Added support for backing up SharePoint application sites.
5. Refined the backup status to speed up troubleshooting.
6. Added support for restoring mails to their original folders with options to overwrite/skip existing items.
7. Added support for displaying progress percentage for ongoing backup tasks.
8. Added support for restoring group mailboxes and group calendars to user accounts.

Fixed Issues

1. Fixed the issue where a mail backup might fail when the attributes of some mails corrupted on the server side.
2. Fixed the issue where a contact backup might fail when the server returned "ErrorContentConversionFailed".
3. Fixed the issue where backup tasks might not work properly with limited Internet connectivity.
4. Fixed the issue where retention policies and auto-discovery services might not work properly when there were multiple backup tasks.
5. Fixed the issue where a mail backup might fail when a backup list contained an account without a valid Exchange license.
6. Fixed the issue where SharePoint sites might not display properly in a backup list owing to server errors.
7. Fixed the issue where a backup task might fail when the URL of a SharePoint site got modified during the backup process.
8. Fixed the issue where backing up a SharePoint site with more than 5,000 items in the first layer of files might fail.
9. Fixed the issue where a backup task might loop endlessly when the hash value of a file provided by the Microsoft 365 server was incorrect.
10. Fixed the issue where a database error might trigger an incorrect error message indicating insufficient storage space, which caused the backup to stop.
11. Fixed the issue where DSM-related operations, such as sending backup result notifications and renaming users or shared folders might cause the package to become unresponsive.
12. Fixed the issue where on-premises SharePoint sites might be listed in the backup list.

Version: 2.1.3-0792

---

Fixed issues

1. Decreased the possibility of SharePoint API throttling errors by reducing the number of SharePoint API requests.
2. Fixed the issue where SharePoint backup might fail owing to a temporary server error or connection error that occurs during the backup task creation.
3. Fixed the issue where the backup of calendar events with a large number of attachments might easily encounter throttling.
4. Fixed the issue where slow server response might cause SharePoint backup failures by extending the timeout limit.
5. Fixed the issue where the backup of emails containing a large number of invalid HTML tags might cause high memory usage and that the package might become unresponsive.
6. Fixed the issue where fragmented free space caused by email backup in Btrfs volumes might affect storage utilization.
7. Fixed the issue where an error occurs when emails being backed up have an attachment named "not supported calendar message.ics".
8. Fixed the issue where an error occurs when the mail backup list consists of accounts hosted by an on-premise or non-Exchange server (eg., external users).
9. Fixed the issue where Exchange archive mailboxes might not be backed up correctly.

Version: 2.1.3-0791

---

Important Note

1. This version is replaced by Active Backup for Microsoft 365 2.1.3-0792 to fix an issue.

Version: 2.1.3-0790

---

Important Note

1. This version is replaced by Active Backup for Microsoft 365 2.1.3-0792 to fix several issues.

Version: 2.1.2-0778

---

Fixed issues

1. Fixed an issue where a mail backup task of an account might fail when the content of the remote mail is damaged.
2. Fixed an issue where backing up a SharePoint Online site might fail when containing application sites.
3. Fixed an issue where backup tasks might fail due to abnormal network connection when changing Synology NAS network connection after activating the package.
4. Fixed an issue where backing up SharePoint Online services might loop endlessly when the hash value of the file provided by the Office 365 server is incorrect.
5. Fixed an issue where restoration of contact information might fail when the contact’s email is blank.

Limitation

1. This version does not support text search of excel file extensions.

Version: 2.1.1-0772

---

Fixed issues

1. Refine the notification frequency for continuous backup.
2. Fixed the issue where backing up OneDrvie might loop endlessly when the API returns wrong file sizes.
3. Fixed the timeout issue during the backup of Calendar.
4. Fixed the issue where backing up attachments of Calendar might fail when the API returns an unexpected error message.
5. Fixed the issue where backing up the Mail service might loop endlessly when the API returns an unexpected error message.
6. Fixed the issue where backup tasks might keep failing after an abnormal crash.
7. Fixed the issue where updating Active Backup for Office 365 might keep failing after an abnormal crash.
8. Fixed the issue where backing up the SharePoint Online services might fail when the backup task includes a site created by Azure Bot Service.
9. Fixed an issue where a SharePoint document library might be ignored in the backup task when the library is moved from one site to another.
10. Fixed the issue where backing up a SharePoint Online site might fail when the API returns duplicated list names.
11. Fixed the issue where an email attachment might fail to be restored when it is an EML file.
12. Fixed the issue where a backup task might need to re-authenticate during the backup of SharePoint Online sites.
13. Fixed the issue where restoration of a site list might fail when a column name conflicts with another column within the same list.
14. Fixed the issue where backing up a SharePoint Online site might fail during the second-time backup when two document libraries in the site exchange the names.
15. Fixed the issue where creating a backup task containing the SharePoint Online services might time out when there is a large amount of user accounts.
16. Fixed the issue where exporting a large amount of files might fail owing to the timeout.
17. Fixed the issue where backing up the SharePoint Online services might fail when the API returns duplicated URLs of sites.
18. Fixed the issue where backing up the SharePoint Online services might fail when the backup task includes a site being locked.
19. Fixed the issue where DSM domain users might fail to manipulate the backup data on the self-service recovery portal.

Limitation

1. This version does not support changing the volume of a backup destination.
2. This version does not support the ext3 file system.

Version: 2.1.0-0694

---

What's new

1. Supports backing up SharePoint, including document libraries and lists.
2. Supports selecting multiple files when restoring or exporting files of OneDrive and SharePoint.
3. Supports restoring a whole mail folder.
4. Supports single instancing on the ext4 file system.
5. Enhanced performance by reducing the frequency of issuing DNS requests.
6. Enhanced performance of backing up OneDrive by reducing the number of API calls.
7. Reduced the response time of user interfaces when there are a large number of users in the backup list.
8. Enhanced performance of restoring OneDrive, Mail, Calendar, Contacts, and SharePoint by multithreading.
9. Enhanced the performance of backup comprehensively.
10. Enhanced performance by reducing the number of small files.

Fixed issues

1. Refined error messages for clearer indications.
2. Supports preserving the latest version of deleted data.
3. Supports resuming backup tasks when the problems of network connection are solved.
4. Fixed an issue where backing up the attachments of mails with null Content-ID might fail.
5. Fixed an issue where backing up OneDrive might fail when the API returns a negative value of file size.
6. Fixed an issue where backing up Calendar might fail when there is an attachment over 50MB.
7. Fixed an issue where backup tasks might fail when there is a user not enabling his/her OneDrive service.
8. Fixed an issue where backing up emails might fail when the Office 365 server returns a message that there is an invalid email.
9. Fixed the timeout issue when backing up Calendar.
10. Fixed an issue where backing up Calendar might fail because of duplicated calendar records generated from the incorrect shutdown of a server.
11. Fixed an issue where a task of backing up OneDrive cannot be completed when the OneDrive server reports an incorrect file size of a OneNote file.
12. Fixed an issue where backing up Calendar might fail when calendar files contain deleted attachments.
13. Fixed an issue where renaming folders that contain large files during backing up might consume too much memory of the Synology NAS.
14. Fixed an issue where backup tasks might fail when a user’s mail account is renamed.
15. Fixed an issue where backing up the Mail service might fail when the Office 365 server is busy.
16. Fixed an issue where updating Active Backup for Office 365 might keep failing after an unusual interruption.

Version: 2.0.4-0497

---

What's New

1. Added support for backing up root folder in Exchange.
2. Added support for archive mailboxes.
3. Added package activation process.
4. Removed license requirement.

Fixed issues

1. Fixed an issue where backing up a large mail might fail.
2. Fixed an issue where information of Active Backup for Office 365 Portal might fail to be displayed due to same username with different domain under an Office 365 tenant.
3. Fixed an issue where backing up deleted contacts or calendar events within deleted mail folders might fail
4. Fixed an issue where restoring mails with large attachments might fail.
5. Fixed an issue where backing up calendar might fail when the attachment contains deleted calendars events.

Version: 2.0.3-0462

---

What’s new

1. Enhanced the performance of single instancing.
2. Enhanced the performance when browsing backup versions in Active Backup for Office 365 Portal.
3. Enhanced the performance of data verification in OneDrive for Business.

Fixed issue

1. Reduced the possibility of OneDrive for Business run-time error 429 to enhance backup performance.
2. Fixed an issue where an email with mail attachment's name longer than 143 characters might failed to be backed up.
3. Fixed an issue when performing content search for mail and calendar attachment, package might crash.
4. Fixed an issue where mail or calendar data with .7z attachment might failed to be backed up.
5. Fixed an issue where mail or calendar data with content type message/rfc822 attachment might failed to be backed up.
6. Fixed an issue where group calendar might failed to be backed up when group calendar ID was changed.
7. Minor bug fixes.

Version: 2.0.2-0427

---

What's new 

1. Supports backing up Office 365 mail, contacts, and calendar services on Office 365, Office 365 Germany, and Office 365 operated by 21Vianet.
2. Supports backing up Office 365 operated by 21Vianet OneDrive for Business service.
3. Supports granular restoration of mail, mail attachments, contacts, calendar events, and calendar attachments.
4. Supports content search for filtering out emails, mail attachments, contacts, calendars, and calendar attachments that contains search keywords.
5. Supports previewing email content and detailed contact info.
6. Supports exporting mail, contacts, and calendar data in the eml, csv, and ics formats respectively.
7. Supports continuous, manual, and scheduled backup for mail, contacts, and calendar protection.
8. Supports account discovery for mail, contacts, and calendar protection.
9. Supports single instancing for mail and calendar attachments.
10. Enriched the design of the overview page and Active Backup for Office 365 Portal.
11. Enhanced the performance for Office 365 service backup.
12. Added support for deleting users' backup data.

Fixed issues

1. Fixed an issue where backup tasks might fail when email contains invalid charset.
2. Fixed an issue where backing up a large folder with files had been deleted might consume too much memory.
3. Fixed a security issue to prevent cross-site scripting (XSS) attacks.

Version: 1.0.5-0142

---

Thai user interface is now available.

Version: 1.0.4-0134

---

Fixed issue

1. Fixed an issue where backup data might not inherit ACL permissions.
2. Fixed an issue where backup tasks might fail when files to be backed up are modified after the tasks have been triggered.
3. Fixed an issue where backup tasks might fail when too many requests are being processed (http status code 429).

Version: 1.0.3-0125

---

Fixed issues

1. Fixed an issue where the backup version of a file might not be deleted when the file is deleted from a renamed folder on Office 365. 
2. Fixed an issue where selecting/deselecting users for backup on the task creation and edit page might cause browsers to be unresponsive when a task contains a large amount of users. 
3. Minor bug fixes.

Version: 1.0.2-0123

---

What’s new

1. Supports backing up OneDrive for Business data as well as corresponding metadata/sharing permission stored on Office 365 to Synology NAS.

2. Supports restoring data and corresponding metadata all together to Office 365.

3. Supports data download to local destinations.

4. Supports automatic detection and backup of new accounts with account discovery. 

5. Supports continuous, manual, and scheduled backup.  

6. Supports single instancing and block-level deduplication to enhance storage efficiency.

7. Supports easy restoration with Active Backup for Office 365 Portal.

8. Supports email notification.

Note:

1. Active Backup for Office 365 is supported on x64 Synology NAS servers.     
2. Office 365 and Office 365 Germany are supported (excluding Office 365 China/Government plans).