Installation & Configuration of Exchange Server 2019 Hybrid with Microsoft 365 (Modern Hybrid Agent) [Step by
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Advanced Office 365 Routing: Locking Down Exchange On-Premises when MX points to Office 365 - Microsoft Community Hub
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Manage mail flow with mailboxes in multiple locations (Exchange Online and on-premises Exchange) in Exchange Online | Microsoft Learn
![Manage mail flow with mailboxes in multiple locations (Exchange Online and on-premises Exchange) in Exchange Online | Microsoft Learn Manage mail flow with mailboxes in multiple locations (Exchange Online and on-premises Exchange) in Exchange Online | Microsoft Learn](https://learn.microsoft.com/en-us/exchange/exchangeonline/media/60d0655c-eff8-441f-9911-7f8b4cc06fe5.png)