Backup and Restore

Microsoft Office 365

Securely protect your Microsoft Office 365 organization from security threats and retention policy gaps. Quickly restore your business-critical data with fast, easy recovery.

Fast and Secure Backups for


Outook Calendar

Outlook Contacts

OneDrive for Business


Teams Files

Domain or user-level backups

Restore to local or cloud

Encrypted and immutable Backups

Microsoft recommends third-party backups

Microsoft is not liable for any disruption or loss you may suffer. In the event of an outage, you may not be able to retrieve Your Content or Data that you’ve stored. We recommend that you regularly backup Your Content and Data that you store on the Services or store using Third-Party Apps and Services.

Key Features to Protect your Office 365 Data

Backup mailboxes – emails, attachments, calendars & contacts

Backup files within OneDrive for Business & SharePoint sites

Backup files and attachments from Microsoft Teams

High performance incremental backups

Quick and easy search/filter features

Restore full mailbox or selected emails

Preview emails before restoring

Restore SharePoint sites, OneDrive and Teams files within the associated site

Restore from any point in time

Restore to local PC

Restore to original O365

Restore with default or customizable retention policies

Proven security and transparency

Fast, secure, encrypted and incremental forever

Chunking is a leap forward for backup software from the status quo. Using client-side deduplication, data is broken into compressed, encrypted chunks creating bandwidth and storage space efficiency. Our backups are incremental forever and after the first backup, you’ll never have to re-upload the full file again.

The software we use is reliable, configurable and secure by design. With quarterly software releases, community input also drives our development roadmap.

Compressed and Encrypted

During backup, transit and rest. The only time it is unencrypted is during a restore.


Frequently Asked Questions about Office 365 Backup

Does Microsoft 365 back up my data?

It’s a common misconception to think that Microsoft backs up your Microsoft 365 (Office 365) data. In reality, while Microsoft provides great resiliency and built-in tools for compliance, they do not provide a comprehensive backup. Microsoft’s Shared Responsibility Model states that organizations are still responsible for their own data.

How often should I backup Microsoft 365 data?
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How many Microsoft 365 users should I backup?

All of them! Every user in your organization generates data every day, and most, if not all of that Microsoft 365 data will have some value and your organization will suffer if it is lost. It would be a mistake to not protect all of your organization’s data. 

What counts as a user for Microsoft 365?

To calculate the number of licenses you need for Backup, count the number of users within your Microsoft 365 subscription. You do not need to count the same user more than once across multiple Microsoft 365 services.

Here are additional details for each Microsoft 365 service:


  • Exchange Online or Exchange On-Premises: A user mailbox can be a personal mailbox, an online archive mailbox or both; you only need one license for that user. Please note that shared and resource mailboxes do not need to be licensed and can be backed up FREE of charge.

  • OneDrive for Business: OneDrive for Business user licenses are automatically aligned with their matching email accounts. This means you cannot use the same license to back up one user’s email and another user’s OneDrive for Business account. Please note that OneDrive (without “for Business”) is a separate storage service and is not supported by this solution.

  • SharePoint Online or SharePoint On-Premises: Each SharePoint user inside your Microsoft 365 subscription (or on-premises deployment) that has been granted access to the SharePoint sites you are looking to protect needs to be licensed to back up and protect your organization’s SharePoint environment. If you have a hybrid SharePoint deployment (i.e., SharePoint On-Premises and SharePoint Online) and the same user has access to both, only one  license is needed for that user. Please note that external SharePoint users do not need to be licensed. An external SharePoint user is someone from outside your Microsoft 365 subscription to whom you have given access to one or more sites, files or folders. External authenticated users are limited to basic collaboration tasks and external anonymous users can edit or view specific documents when given specific permissions. 

  • Microsoft Teams: When protecting a team with Microsoft 365 Backup, you must have a license for each user that is an active team member and who has a paid Teams license in Microsoft 365

  • Mailboxes of guest users, deleted users, eDiscovery, and Journals are not available for backup.
What are immutable backups?

Protect against ransomware or accidental deletions with free storage immutability. Backups are a favorite target of cybercriminals because encrypting both your primary systems and secondary backups increases the odds that you’ll pay their ransom. Our immutable storage makes it impossible for anyone to access, alter or delete your data stored for a set retention period (minimum 30 days), adding failsafe protection to your multilayered approach to cybersecurity.

Am I charged any egress or API call fees?

There are no additional fees for egress of API calls, so you get straightforward pricing that eliminates the guesswork associated with using AWS S3 and other hyperscale storage services. Test and restore your backups without fear of egress fees

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