Office 365 E3 Trial

Microsoft Online Services Sign-In Assistant (MOS SIA). Allows client applications to authenticate to Office 365.   Download

Azure Active Directory Module for Windows PowerShell.  PowerShell cmdlets to manage your Office 365 tenant environment.  Download

$UserCredential = Get-Credential

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

Import-PSSession $Session

Exchange Client Bandwidth Calculator

Disable Office 365 Group Creation (using Outlook Web App policies)