$Tenant = Read-Host -Prompt 'Input the tenant admin account'
Import-Module ExchangeOnlineManagement
Connect-ExchangeOnline -UserPrincipalName $Tenant

Set-ExecutionPolicy RemoteSigned

Install-PackageProvider -Name NuGet -Force
Install-Module -Name PowerShellGet -Force
Update-Module -Name PowerShellGet
Install-Module -Name ExchangeOnlineManagement

Import-Module ExchangeOnlineManagement
Connect-ExchangeOnline -UserPrincipalName admin@tenant.onmicrosoft.com

Old:

$LiveCred = Get-Credential

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell/ -Credential $LiveCred -Authentication Basic –AllowRedirection
Import-PSSession $Session -DisableNameChecking