Connect to Exchange Online Protection PowerShell

Exchange Online Protection PowerShell allows you to manage your Exchange Online Protection settings from the command line. You use Windows PowerShell on your local computer to create a remote PowerShell session to Exchange Online Protection. It's a simple three-step process where you enter your Office 365 credentials, provide the required connection settings, and then import the Exchange Online Protection cmdlets into your local Windows PowerShell session so that you can use them.

What do you need to know before you begin?

  • Estimated time to complete: 5 minutes

  • You can use the following versions of Windows:

  • Windows PowerShell needs to be configured to run scripts, and by default, it isn't. You'll get the following error when you try to connect:

    Files cannot be loaded because running scripts is disabled on this system. Provide a valid certificate with which to sign the files.

    To require all scripts that you download from the internet are signed by a trusted publisher, run the following command in an elevated Windows PowerShell window (a Windows PowerShell window you open by selecting Run as administrator):

    Set-ExecutionPolicy RemoteSigned

    You need to configure this setting only once on your computer, not every time you connect.


Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.

Connect to Exchange Online Protection

  1. On your local computer, open Windows PowerShell and run the following command:

    $UserCredential = Get-Credential

    In the Windows PowerShell Credential Request dialog box, type your work or school account and password, and then click OK.

  2. Run the following command:

    $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri -Credential $UserCredential -Authentication Basic -AllowRedirection


    • For Office 365 Germany, use the ConnectionUri value:

    • For Exchange Online Protection subscriptions that are Exchange Enterprise CAL with Services (includes data loss prevention (DLP) and reporting using web services), use the ConnectionUri value:

  3. Run the following command:

    Import-PSSession $Session -DisableNameChecking

    [!NOTE] Be sure to disconnect the remote PowerShell session when you're finished. If you close the Windows PowerShell window without disconnecting the session, you could use up all the remote PowerShell sessions available to you, and you'll need to wait for the sessions to expire. To disconnect the remote PowerShell session, run the following command:

    Remove-PSSession $Session

How do you know this worked?

After Step 3, the Exchange Online Protection cmdlets are imported into your local Windows PowerShell session and tracked by a progress bar. If you don't receive any errors, you connected successfully. A quick test is to run an Exchange Online Protection cmdlet, for example, Get-TransportRule, and see the results.

If you receive errors, check the following requirements:

  • A common problem is an incorrect password. Run the three steps again and pay close attention to the user name and password you enter in Step 1.

  • To help prevent denial-of-service (DoS) attacks, you're limited to three open remote PowerShell connections to your Exchange Online Protection organization.

  • TCP port 80 traffic needs to be open between your local computer and Office 365. It's probably open, but it's something to consider if your organization has a restrictive Internet access policy.

  • The New-PSSession command (Step 2) might fail to connect if your client IP address changes during the connection request. This can happen if your organization uses a source network address translation (SNAT) pool that contains multiple IP addresses. The connection error looks like this:

    The request for the Windows Remote Shell with ShellId <ID> failed because the shell was not found on the server. Possible causes are: the specified ShellId is incorrect or the shell no longer exists on the server. Provide the correct ShellId or create a new shell and retry the operation.

    To fix the issue, use an SNAT pool that contains a single IP address, or force the use of a specific IP address for connections to the Exchange Online Protection PowerShell endpoint.

See also

The cmdlets that you use in this topic are Windows PowerShell cmdlets. For more information about these cmdlets, see the following topics.