Exchange Online

Latest Articles

Creating an Exchange Online Inbound Email Traffic Report for the Last 90 Days

Exchange Online keeps message trace data online for 10 days. If you want an email traffic report covering longer periods, you need to retrieve historical message data (for up to 90 days) and report that data. That's the easy description. This article explains some of the complexities involved in generating a 90-day email traffic report for a Microsoft 365 tenant.

November 28, 2023

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