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Linh123's avatar
Linh123
Copper Contributor
Oct 02, 2020

Exchange online

Hey Guys, I set up a connector from "Office 365" to "Your organization's email server" in Exchange admin center. When I sent email, email don't save in MS 365 mailbox but it directly delivered to G s...
exchange
Linh123's avatar
Linh123
Copper Contributor
Oct 09, 2020

Hi BenKrah 

I have only one domain that added to both the G Suite and O365. I want to set up dual delivery in Exchange Online.

BenKrah's avatar
BenKrah
Brass Contributor
Oct 09, 2020

Hi Linh123,

 

as already mentioned, a MX record can only point to one system, not to both (if the domain is also used for authentication in G Suite, you can keep the configuration itself).

 

You already configured the MX record to point to Exchange Online so all mails will be routed there and from there you will have to work with forwardings as I described before. If users should get mails in both environments you must assign at least an Exchange Online license to each user and configure forwarding for each user mailbox.

 

You also need a separate email domain in G Suite for forwarding mails because if you configure mail forwarding for a user like this [when a mail for mailto:john.doe@domain.net is received, forward the mail to mailto:john.doe@domain.net] you would create a mail loop. You need an alternative email address so Exchange can route the mail to an external mailbox (Gmail in this case).

  • Linh123's avatar
    Linh123
    Copper Contributor
    Oct 09, 2020

    Thanks, BenKrah. 

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