Office 365

PowerShell
Download & Install
http://g.microsoftonline.com/0bd00zh-tw/568
http://g.microsoftonline.com/0BD00zh-tw/565

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

Configure Remote Domain Properties
http://technet.microsoft.com/en-us/library/bb124931.aspx