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Reusing User Principal Names and Primary SMTP Addresses

Microsoft 365 user accounts have user principal names (for sign in) and primary SMTP addresses (to receive email). Is it a good idea to reuse user principal names or SMTP addresses that become available when an employee leaves the organization. It might seem like a good idea, but it's really not and should be avoided. We explain why here.

October 17, 2023

Using the Microsoft Graph PowerShell SDK to Generate a Mailbox Traffic Report

Microsoft 365 makes it easy for administrators to get mail activity usage data for users. However, if you want to know which domains are sending most mail, you need to do some work. In this article, we cover how to use cmdlets from the Microsoft Graph PowerShell SDK to create reports about user mail activity over time and the traffic sent by different domains.

August 7, 2023