Veeam Backup for Microsoft 365 uses the Veeam Azure archiver appliance, a small virtual machine deployed in Azure, to efficiently move backed-up M365 data (Exchange, SharePoint, Teams, OneDrive) into Azure Archive Storage (cold tier) for long-term, low-cost retention, minimizing data egress and speeding up copy jobs by processing data locally within Azure.
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The upgrade failed because the SSH public key fingerprint of the Linux proxy does not match Veeam’s expectations. This typically happens when the proxy’s SSH keys are changed, the server is rebuilt, or the fingerprint stored in Veeam is outdated.
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Veeam released Veeam Backup for Microsoft 365 v8.3.0.2201 on December 18, 2025, which included new features and Enhancements. It also fixed some bugs.
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In Veeam Backup for Microsoft 365 version 8.2, adding a Microsoft Azure Archive Storage repository involves a multi-step wizard within the Backup Infrastructure view. This repository type is specifically designed for long-term retention and supports Backup Copy jobs.
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Integrating Microsoft Azure Blob Storage repositories with immutability requires configuring both...
Read MoreIntroduction This project was built to enable your AI tools, such as Windsurf, to use this MCP server to generate PowerShell Application Deployment Toolkit packages from scratch and more. The MCP server will retrieve the...
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After upgrading Veeam Backup for Microsoft 365 to 8.2.0.2202 (P20251031), a SharePoint site backup...
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We will add Azure Blob Storage, which lacks immutability, to our Veeam Backup for Microsoft 365 Infrastructure in the following steps.
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To install the Veeam Backup Enterprise Manager on Linux (Veeam Software Appliance) at Hyper-V 2025, you must first build a special Windows Server 2025 Hyper-V virtual machine (VM) that satisfies hardware requirements. Then, you must boot the VM from the VSA ISO.
Veeam Software Appliance is a software solution that includes Enterprise Manager or Veeam Backup & Replication along with the Rocky Linux operating system.
Network Attached Storage can also be used with Veeam Backup for Microsoft 365 as a backup repository. These Network Attached Storage devices can be accessed and configured via a shared folder on your computer or any other physical device accessed using the SMB protocol.
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To add a local directory or Direct Attached Storage (DAS) as a backup repository in Veeam Backup for Microsoft 365, you need to use the Veeam Backup for Microsoft 365 console and select the server hosting the storage as a backup proxy.
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In order to install the Veeam Software Appliance (VSA) on Hyper-V 2025, you must first build a special Windows Server 2025 Hyper-V virtual machine (VM) that satisfies hardware requirements. Then, you must boot the VM from the VSA ISO.
A new pre-hardened Linux-based deployment option for Veeam Data Platform, the Veeam Software Appliance is easier, safer, and quicker to set up than conventional installations and supports a high-availability cluster.
Version 8 of Veeam Backup for Microsoft 365 introduced proxy pools to improve performance and scalability in large installations. By logically combining several backup proxies, a proxy pool enables dynamic load distribution of backup and restore traffic, removing bottlenecks and accelerating processes.
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Make sure you are running Veeam Backup & Replication version 12.3.1 or later to perform an in-place upgrade to Windows Server 2025, since version 13.0.1 enables in-place upgrades from this version. First, create a full backup of your existing Veeam configuration database and install the updated Veeam Backup & Replication 13.0.1.180 ISO, which is now available for Windows Server 2025.
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Linux Backup proxy servers are auxiliary servers that you can configure to improve performance, scalability, and flexibility.
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To execute an in-place upgrade of Veeam Backup Enterprise Manager on a server being upgraded to Windows Server 2025, Veeam Backup Enterprise Manager must first be upgraded to a compatible version.
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Veeam Backup for Microsoft 365 consists of Backup proxy servers, Backup Proxy Pools, Backup Local repositories, and Object storage repositories. These are configured as locations for Microsoft 365 backup data. These can be configured on-premises, in the cloud, or in a hybrid configuration.
Windows Backup proxy servers are auxiliary servers that you can configure to improve performance, scalability, and flexibility.
The Veeam Backup & Replication console is installed on the backup server automatically when you install Veeam Backup & Replication v13. You can utilize the web user interface (UI) or install the Veeam Backup & Replication console on a dedicated computer to access Veeam Backup & Replication remotely.
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When you add an organization using the modern app-only authentication method, Veeam Backup for Microsoft 365 automatically grants permissions for Microsoft Entra applications.
Anyway, if you prefer to use a custom application of your own, grant all the permissions as below.
Veeam Backup Enterprise Manager v13 is a centralized management and reporting tool designed by Veeam Software for overseeing Veeam Backup & Replication deployments. It allows administrators to control and monitor their backup infrastructure through a web-based interface, making it easier to manage large-scale environments.
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Registering a new Microsoft Entra ID application automatically is unavailable if you want to back up team chats and have selected Team chats at the Organization Deployment Type step.
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Veeam Backup & Replication v13 is available for Microsoft Windows as self-managed installable software and as a fully managed software appliance.
The Veeam Backup & Replication console is installed on the backup server automatically when you install Veeam Backup & Replication v13. You can utilize the web user interface (UI) or install the Veeam Backup & Replication console on a dedicated computer to access Veeam Backup & Replication remotely.
Veeam released a version of Veeam Backup for Microsoft 365 v8.2.0.2202 (P20251031) on November 06, 2025, and it resolved the issue – A backup job may fail when processing Archive Mailbox objects with the following error:
Processing archive mailbox: username@organization.com failed with error: Mailbox is not fully configured.
When setting up Backup as a Service with Veeam Backup for Microsoft 365 for tenants, you can install Veeam Explorers using this installation scenario.
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When you install Veeam Backup for Microsoft 365, the REST API and Restore Portal are automatically installed on the backup server.
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