Force Office365 Address lists Synchronization

By default, it takes between 24 to 48 hours for Exchange Online to re-synchronize the address lists and all users to download the most updated information. Unfortunately, the commands available in Exchange on premise to update the Address Lists are not available in Office365 – Exchange Online.

Therefore we will need to force that sync manually. Updating the Address Lists, requires requires to have the Address List Management Role. By default in Exchange online, the Address List role isn’t assigned to any role groups.

1 – Connect to Exchange Online

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

2 – Create a new Group Role

New-RoleGroup -Name "AddressList" -Roles "Address Lists" -Members

3 – Run the Following Commands to update the lists

Set-AddressList -Identity "All users"

New Office 365 (Exchange Online) Storage Size Limit

As of today (July 2016) the mailbox limit for a shared mailbox storage is 50GB (Not 10GB). To access a shared mailbox, a user must have an Exchange Online license. Shared mailboxes don’t require a separate license. However, if you want to enable In-Place Archive or put an In-Place Hold or a Litigation Hold on a shared mailbox, you must assign an Exchange Online Plan 1 with Exchange Online Archiving or Exchange Online Plan 2 license to the mailbox. Source:

Interested in deploying multi-factor authentication for your business? It is now part of Office 365

Multi-factor authentication is now part of Office 365 and available for all users. Any of the following may be used for the second factor of authentication.

  1. Call my mobile phone. The user receives a phone call that asks them to press the pound key. Once the pound key is pressed, the user is logged in.
  2. Text code to my mobile phone. The user receives a text message containing a six-digit code that they must enter into the portal.
  3. Call my office phone. This is the same as Call my mobile phone, but it enables the user to select a different phone if they do not have their mobile phone with them.
  4. Notify me through app. The user configured a smartphone app and they receive a notification in the app that they must confirm the login. Smartphone apps are available for Windows Phone, iPhone, and Android devices.
  5. Show one-time code in app. The same smartphone app is used. Instead of receiving a notification, the user starts the app and enters the six-digit code from the app into the portal.

For more information about Multi-Factor Authentication for Office 365 please read the TechNet article Multi-Factor Authentication for Office 365