Close Microsoft 365 backup gaps

Protect Teams, SharePoint, Exchange, and OneDrive data from ransomware and data loss with immutable, off-site backups.

Comprehensive protection for Microsoft 365 with Backblaze B2

According to Microsoft, it is your responsibility to back up your data. Protect it from deletion, ransomware, and retention policy gaps with Backblaze B2.

Complete backups

Secure Microsoft 365 data with point-in-time, virtually air-gapped backups for heightened protection.

Instant recovery

Access readily available backups to quickly restore files during disasters, avoiding costly downtime.

Regulatory compliance

Meet compliance by storing data according to SOC 2, HIPAA and support legal hold requirements.

Affordable pricing

Store and use more data for less—with pricing ⅕ the rates of AWS S3 and free egress up to 3x your stored data.

Shared responsibility: Microsoft recommends using third-party backups to strengthen Microsoft 365

Microsoft 365 Workflow Diagram

“All online services suffer occasional disruptions and outages, and Microsoft is not liable for any disruption or loss. We recommend that you regularly back up your content and data that you store on the Services or store using third-party apps and services.” —Microsoft Services Agreement, section 6b

Works with leading Microsoft 365 backup solutions

Buy your way, always know what you’ll pay

Pay-As-You-Go

B2 Reserve

Backblaze B2 LogoBackblaze B2 Icon
Amazon S3 LogoAmazon S3 Icon
Microsoft Azure LogoMicrosoft Azure Icon
Google Cloud LogoGoogle Cloud Icon

Storage

(TB/month)

$6

$26

$20

$23

Egress

($/GB)

Free*

$0.09

$0.08

$0.11

Backblaze B2 ReserveBackblaze B2 Reserve Icon
Amazon S3 LogoAmazon S3 Icon
Microsoft Azure LogoMicrosoft Azure Icon
Google Cloud LogoGoogle Cloud Icon

Storage

(250TB/year)

$19,500

$75,600

$52,395

$69,000

Egress

($/GB)

$0*

$0.06

$0.05

$0.08

Pay-As-You-Go cloud storage cost and savings calculator

B2 Reserve cloud storage cost and savings calculator

TB
TB
$25,000/yr
$25,000/yr
$25,000/yr
$25,000/yr
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Trusted by 100,000+ organizations

How to get started

Back up your Microsoft 365 data to B2 Cloud Storage in a matter of minutes.

  • Create a Backblaze B2 account. 
    Get started free or contact us about running a custom proof of concept.
  • Connect backup software.
    In your existing application, designate Backblaze B2 as your storage target—it’s easy with Backblaze integration guides.
  • Start backing up. 
    Refine your settings to suit your needs, and you’re ready to go. You can make changes at any time.
Start Now

FAQ

How secure is my data when stored in Backblaze B2?

The Backblaze B2 Storage Cloud platform is architected and designed with data security in mind. The key pillars of our security framework are enterprise-grade access management security, data storage security, and architecture & physical security. These include a wide range of administrative and technical controls, implemented at the enterprise, business process, and system levels, and attestations—so whether you’re seeking a platform designed to 11 nines of durability, encryption options, immutability, SOC 2 compliance, data replication, or just peace of mind, Backblaze is built for you.

Why do I need an external backup solution for Microsoft 365 data?

While Microsoft 365 offers features like versioning, the recycle bin, and limited retention policies, these are not fully equipped to protect against ransomware, deletions, and other data disasters. In fact, Microsoft itself recommends backing up your content and data using third-party apps and services. A dedicated backup solution like Backblaze B2 bridges this gap with secure, immutable, off-site backups.

What is Microsoft 365’s shared responsibility model?

The shared responsibility model in Microsoft 365 outlines that while Microsoft ensures the availability of its cloud services (like servers, infrastructure, and uptime), users are responsible for managing and securing their data within Microsoft 365 applications.

Do I need cloud backup if I have OneDrive?

Yes. As a cloud sync service, OneDrive synchronizes files on your computer to your other devices, ensuring that the same and most up-to-date information is merged across each device. However, it doesn’t provide comprehensive data protection, highlighting the need for a dedicated backup solution like Backblaze B2.

Which Microsoft 365 components can be backed up to Backblaze B2?

Backblaze B2 can back up a variety of Microsoft 365 components, including Exchange, SharePoint, OneDrive, and Microsoft Teams data. This offers comprehensive coverage for all your communication, collaboration, and critical business information available within the Microsoft 365 suite.

Which backup software can I use to back up my Microsoft 365 data to Backblaze B2?

Backblaze B2 works with leading backup applications including Bacula, Catalogic, Cohesity, Comet, Commvault, HYCU, MSP360, Parablu, Rubrik, Storware, Veeam, Veritas, and more, facilitating easy setup and effortless Microsoft 365 data protection. You can get started with any of these applications or use our S3 compatible API to designate Backblaze B2 as your storage target in your preferred application.

Want to run a free proof of concept for more than 50TB?

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