How to Connect to Office 365 via PowerShell

In this tutorial, we will show how to connect to your Office 365 Exchange via PowerShell.

Prerequisites:

• Account must be a member of the organizations global admin group
• Download and install the following PowerShell modules from Microsoft
• Microsoft Online Services Sign-In Assistant for IT Professionals RTW
• Install the Microsoft Azure Active Directory Module by running the following command within PowerShell:


• Install-Module -Name AzureAD


• If prompted about installing a module from an untrusted repository, type Y and press ENTER.

• Microsoft .Net framework 4.5.X and above

Once the prerequisites have been completed, run the following:

$Credential = Get-Credential

Enter your Office 365 admin credentials and hit OK. This inputs your credentials into a variable named "Credential" and will be called on in the next step. 

Next, enter the following command:

$Session = New-PSSession -ConfigurationName Microsoft.Exchange - ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $Credential -Authentication Basic -AllowRedirection

After this command has been run, run the last command: 

Import-PSSession $Session

If this is the first time making an Office365 connection with PowerShell, you will need to set the execution policy:

set-ExecutionPolicy remotesigned

And that is it. To test the connection, simply run the Get Mailbox command:

get-mailbox

It is also a good habit to close your active PowerShell connection. Run this to close the active session: 

Remove-ActiveSession $PSSession