Used Ports

The following table lists required ports that must be opened for inbound/outbound requests in Veeam Backup for Microsoft Office 365.

Used Ports Note:

Data communication between Microsoft Office 365 organizations and Veeam Backup for Microsoft Office 365 is performed via an SSL connection.

 

From

To

Protocol

Port

Description

Veeam Backup for Microsoft Office 365 Server

Microsoft Exchange Online

TCP

80, 443

Required to connect to Microsoft Exchange Online organizations.

Microsoft SharePoint Online

TCP

80, 443

Required to connect to Microsoft SharePoint Online organizations.

On-premises Microsoft SharePoint Server

HTTP (HTTPS)

5985 (5986 — used by default)

Required to connect to on-premises Microsoft SharePoint organizations via the WinRM port.

On-premises Microsoft Exchange Server

TCP

80, 443

Required to connect to on-premises Microsoft Exchange organizations.

Backup Proxy Server

TCP

9193 (used by default)

Required to manage inbound/outbound traffic when interacting with the Veeam Backup for Microsoft Office 365 server.

Make sure to open this port on a backup proxy server.

TCP

445

This port is used to:

  • Install and manage the Veeam.Archiver.Proxy service on a target proxy machine.
  • Perform RPC requests.

Veeam Auto-update Server

HTTPS

443

Required to access the auto-update server and licensing server. For more information, see Checking for Updates and Installing License.

The end point is: https://vbo.butler.veeam.com/json-rpc.php

S3 Compatible object storage

HTTPS

443 (used by default)

Required to work with any of the object storage repositories.

Amazon S3 object storage / IBM Cloud Object Storage

Azure blob storage

Components

Veeam Backup for Microsoft Office 365 Server

TCP

9191

Required to manage inbound/outbound traffic when interacting with the following components:

  • RESTful API
  • PowerShell
  • Veeam.Archiver.Shell (UI)
  • (optionally) A remote management server (if any)

Make sure to open this port on a Veeam Backup for Microsoft Office 365 server.

Veeam Explorer for Microsoft Exchange

Veeam Explorer for Microsoft SharePoint (including Veeam Explorer for Microsoft OneDrive for Business)

Veeam Backup for Microsoft Office 365 Server

TCP

9194

Required to manage inbound/outbound traffic when interacting with:

  • Veeam Explorer for Microsoft Exchange
  • Veeam Explorer for Microsoft SharePoint

Make sure to open this port on a Veeam Backup for Microsoft Office 365 server.

Backup Proxy Server

Veeam Backup for Microsoft Office 365 Server

TCP

9191

Required to manage inbound/outbound traffic when interacting with backup proxy servers.

Make sure to open this port on a Veeam Backup for Microsoft Office 365 server.

You can also change this port, as described in Editing Backup Proxy Server.

Microsoft Exchange Online

TCP

80, 443

Required to connect to Microsoft Exchange Online via EWS (Exchange Web Services).

On-premises Microsoft SharePoint

HTTP (HTTPS)

5985 (5986)

Required to connect to on-premises Microsoft SharePoint organizations via the WinRM port.

Cloud Gateway

A server that hosts Veeam Backup & Replication and Veeam Backup for Microsoft Office 365

TCP

9194

Required to maintain inbound/outbound traffic.

 

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