Forum Discussion

Copper Contributor

Oct 01, 2018

Can 365 ignore internal domains when routing email?

Hi all, This is a conundrum I've got concerning Users accessing 365 services whose email is provided by Google/G Suite. We currently have two primary groups of users. Group A Users have their...

jcgonzalezmartin

MVP

Oct 01, 2018

Which platform is the master in terms of e-mail: Google or Office 365? I guess Google, if so you have to have both Group of users in Google and configure e-mail redirection for the Group of users that is already in Office 365

Copper Contributor

Oct 01, 2018

Hi Juan,

Thanks for the response.

We're in between at the moment. Group A needs the benefits of being on Office 365, whilst B need the benefits of being on Google. Not the ideal situation to be in, but we're caught at the moment. It boils down to education needs.

From what you're saying though it sounds like it can't be done. I would have thought there was some way we could force Office 365 to ignore internal accounts for email routing. So as it stands you have to have email hosted - not just the account - with 365 in order for the other Office 365 services to be accessed?

I'm not making a lot of sense myself when reading it back, but I hope someone can decipher what I'm saying!

Thanks again,

VasilMichev
MVP
Oct 01, 2018
You will need to setup the so-called "simple domain sharing", as detailed for example here: https://support.office.com/en-us/article/domains-faq-1272bad0-4bd4-4796-8005-67d6fb3afc5a#bkmk_pilot

In any case, you will need to configure some sort of forwarding to handle the flow. Depending on the setup you can either do "regular" user-level forwarding or set up connectors, etc.
- Patrick Thomas
  Copper Contributor
  Oct 03, 2018
  Hi Vasil,
  
  Sorry for the slow response.
  
  This looks promising, but I am still unsure this is what we will need to do. We spoke to Microsoft phone support and it was advised the proposed setup we want is not going to work, or at least reliably so, to do what we want to do.
  
  I think we'll need to rethink.
  
  Thanks both,
  - Nestori Syynimaa
    MVP
    Oct 05, 2018
    Hi Patrick,
    
    If I understood correctly from your previous posts, your MX records points to Google and you forward mail from there to Office 365. If so, all you need to do is to go to Exchange Online admin center, go to mail flow and change to accepted domains tab. Then double-click the domain in question and change This accepted domain is to Internal Relay and click save. You will get a warning about missing outbound connector, but because your MX points to Google, that is not an issue.
    
    That should do it, let us know whether it worked.

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