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GEDEDARMAYASA-9268 asked ·

Office365 Online - On Premise

Dear Support, I have case, as describe on the images bellow: ![76936-network.png][1] [1]: /answers/storage/attachments/76936-network.png The Question is how to communicate email from Office 365 online, with email that host locally on local exchange regards, Darma

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KyleXu-MSFT answered ·

@GEDEDARMAYASA-9268

Here are suggestion:
1. Running HCW to create connector to make sure the mail flow between Exchange online and Exchange on-premises.
2. Don't enable centralized mail transport, make sure Exchange online send email out from Exchange online directly.
3. Remove send connector which used to send emails to the Internet from Exchange on-premises.

Here is an article about mail flow in hybrid, if you don't enable centralized mail transport, Exchange online will send email to the Internet directly, Exchange on-premise will send email to Internet from the local environment(if you don't create related send connector on the Exchange on-premises, Exchange on-premises user will cannot send email to the Internet), it doesn't effect the mail flow between Exchange online and Exchange on-premises.


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@GEDEDARMAYASA-9268
I am writing here to confirm with you any update about this thread now?
If the above suggestion helps, please be free to mark it as an answer for helping more people.

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