Provisioning a New Office 365 User and Mailbox from Exchange Hybrid via PowerShell

Working with many Office365 clients, I receive queries on how to go about provisioning users and mailboxes for an Exchange hybrid deployment. To begin with, let’s assume a couple things. We have a Windows 2012 R2 member server with Azure AD Connect (AAD Connect) version (or newer) and the Azure AD Module for PowerShell installed; … Read more

Outlook 2016: Remove Duplicate entries in Room Finder

In Outlook 2016 some users may noticed dual entries in the Room List: The room list behavior that we see  in Outlook is by design. When we  use a Room List  for a meeting, it is stored in the  Most Recently Used entries in the registry. When we create a new meeting, we will see this MRU entry in the top of the Room Lists . The same Room List will be seen again in the drop down which … Read more

How to force update GlobalAddressList in Office 365?

This post explains how to manually force and update the global address list in Office 365. Updating the global address list requires to have the Address List Management role. By default, nobody has this role. 1. Assign the AddressList Management role Login with your administrator account to the Office 365 portal. Go to Exchange Admin … Read more

Exchange 2010: Moving Messages to Another Working Queue on another CAS Server

One of my CAS Hub servers was acting up and started queuing email. I needed to move the message to another working server while I needed time to troubleshoot what was causing the queuing. This is what I had to do. On the non working server: Create a Folder on C: called MailsExport Open Exchange Management … Read more

Cannot migrate user from Exchange 2010 to Exchange Online

So I came across this error while migrating some accounts from On-Premise Exchange 2010 Server to Exchange Online. Error: The subscription for the migration user [email protected] couldn’t be loaded. The following error was encountered: A subscription wasn’t found for this user. In short, there is an address conflict between the user properties of the exchange … Read more

Exchange 2007: Give a user full access to all mailboxes

The following command will give full access to the Mailbox database including future mailboxes when they are created. Just change the name of the Mailbox Database to yours and the name to the one you wish to use

Now access to all mailboxes:

For Send As:

For Recieve As:

In exchange … Read more