Reuse primary SMTP address Archives - Practical 365 Practical Office 365 News, Tips, and Tutorials Wed, 11 Oct 2023 15:25:41 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.2 https://practical365.com/wp-content/uploads/2022/06/favicon.png Reuse primary SMTP address Archives - Practical 365 32 32 Reusing User Principal Names and Primary SMTP Addresses https://practical365.com/reuse-user-principal-name/ https://practical365.com/reuse-user-principal-name/#comments Tue, 17 Oct 2023 10:00:00 +0000 https://practical365.com/?p=59274 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.

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