Do you need to assign a primary email address that's not the same as the user's login ID? In this video, I walk you through the cleanest way to set a custom SMTP address that’s different from the user’s UPN — both for cloud-based Microsoft 365 accounts and hybrid users synced from on-prem Active Directory. I’ll cover: - The PowerShell cmdlets for Exchange Online - The proper way to update on-prem AD attributes (proxyAddresses, mail) - What happens during Azure AD Connect synchronization I use a live tenant and a real world example, going through it all in real-time as I record. Showing the commands that need to happen and also the immediate effect it has on the objects. Please remember to subscribe to the channel, thank you. Mark - The Cloud Geezer #Microsoft365 #EntraID #ExchangeOnline #PowerShell #CloudGeezer #SysAdminLife #AzureAD #HybridIdentity #ActiveDirectory #EmailRouting #UPNchange #SMTPaddress #Office365Admin #ITCommunity #TenantWhisperer #AzureADConnect #IdentityManagement #TechTips #HowToIT