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Exchange Online: route internal messages via Exchange on-premises

%3CLINGO-SUB%20id%3D%22lingo-sub-538554%22%20slang%3D%22en-US%22%3EExchange%20Online%3A%20route%20internal%20messages%20via%20Exchange%20on-premises%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-538554%22%20slang%3D%22en-US%22%3E%3CP%3EDoes%20anyone%20know%20if%20it's%20possible%20to%20route%20all%20Exchange%20Online%20internal%20messages%20(ie%20messages%20sent%20between%20two%20mailboxes%20located%20in%20Exchange%20Online)%20via%20Exchange%20On-premises%20prior%20to%20delivery%3F%20I%20assume%20this%20isn't%20possible%20as%20it's%20using%20local%20delivery%2C%20but%20I%20thought%20I'd%20ask%20the%20wider%20community%20to%20find%20out%20if%20I'm%20missing%20something.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-538554%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EExchange%20Server%3C%2FLINGO-LABEL%3E%3CLINGO-LABEL%3EHybrid%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E%3CLINGO-SUB%20id%3D%22lingo-sub-539408%22%20slang%3D%22en-US%22%3ERe%3A%20Exchange%20Online%3A%20route%20internal%20messages%20via%20Exchange%20on-premises%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-539408%22%20slang%3D%22en-US%22%3E%3CP%3EYeah%2C%20it's%20local%20delivery%20so%20even%20with%20centralized%20transport%20enabled%2C%20it%20will%20still%20deliver%20the%20messages%20directly.%20Perhaps%20you%20can%20set%20up%20something%20with%20conditional%20routing%2Fmail%20flow%20rules%2C%20but%20I%20haven't%20played%20with%20this%20specific%20scenario.%3C%2FP%3E%3C%2FLINGO-BODY%3E
Dan Snape
Contributor

Does anyone know if it's possible to route all Exchange Online internal messages (ie messages sent between two mailboxes located in Exchange Online) via Exchange On-premises prior to delivery? I assume this isn't possible as it's using local delivery, but I thought I'd ask the wider community to find out if I'm missing something.

1 Reply

Yeah, it's local delivery so even with centralized transport enabled, it will still deliver the messages directly. Perhaps you can set up something with conditional routing/mail flow rules, but I haven't played with this specific scenario.

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