Active Directory Sizing for Exchange

It is easy to dismiss the sizing of your Active Directory infrastructure simply based on CPU and RAM resource consumption; the resources generally appear to have minimal usage. However, Active Directory [Domain Services] is a little more complicated than that and Exchange Server is the canary in the coal mine, so to speak. There are … Continue reading Active Directory Sizing for Exchange

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How to Provision Exchange Online Mailboxes

After completing a migration to Exchange Online, it is common to have questions like: 1) What is the best practice for provisioning mailboxes? 2) How do I provision mailboxes? 3) Why should I keep this Exchange server around? Well, these are good questions.  Let's start with the last question.  When an organization migrates to Exchange … Continue reading How to Provision Exchange Online Mailboxes

Potential Litigation Hold Loopholes and How to Avoid Them

One long standing feature of how Microsoft Exchange works has recently changed: where "Sent Items" reside when you "Send As" another recipient.  The traditional flow is that if "User A" has privileges to "Send As" "User B", then the message would go in the "Sent Items" folder of "User A".  This changed with Exchange Server … Continue reading Potential Litigation Hold Loopholes and How to Avoid Them

Learning Microsoft Identity Manager

Microsoft Identity Manager (MIM) is a product with a long history from Microsoft.  While its storied timeline begins many years earlier as a product that Microsoft acquired called ZoomIt Via, Microsoft eventually rewrote the product from the ground up and released it as Microsoft Identity Integration Server 2003.  Since that time, the core component has … Continue reading Learning Microsoft Identity Manager

Identifying Mailboxes without a Cloud Alias

In a hybrid Exchange scenario, mailboxes should be stamped with aliases that are mapped to the tenant unique namespaces (e.g. *.onmicrosoft.com).  If a mailbox does not contain these aliases, it will fail to migrate.  These aliases are normally applied via Email Address Policies, but if the AD object is set to block Email Address Policies … Continue reading Identifying Mailboxes without a Cloud Alias

Desired State Configuration, the Next Thing

PowerShell has been the topic for Windows systems administrators and engineers to learn ever since the release of Exchange Server 2007, the first major product to utilize PowerShell.  Many IT professionals are still behind the curve on adopting PowerShell and I highly recommend getting on the ball and becoming not just familiar, but intimate, with … Continue reading Desired State Configuration, the Next Thing