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 1.1.105.00 (or newer) and the Azure AD Module for PowerShell installed; … Read more

Excel: Check email addresses in bulk if format is correct or not

So had a request today to clean up email addresses as some of them were not valid. This was needed for over 1500 email addresses. So used the formula below and was able to find all addresses that were “FALSE”. I filtered them out and was able to fix them as needed. Here’s what you … 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