Forum Discussion
Exchange Hybrid Deployment single forest multiple email domains
So you already have some live email accounts in O365, but you have not yet configured Exchange Hybrid? Is that correct? How are the O365 mail accounts setup for identity - are the cloud only?
PeterRising Out of 19 domains two are cloud only, so there users are syncing from local AD (UPN Suffix) but their mailboxes were provisioned in cloud.
Other all domains are just email domains added to Exchange on-premise online ( all user with these domains are syncing to cloud with UPN suffix which is common across.
These users have SMTP in local AD but not all proxy addresses which are there in exchange servers.
OK, and in what way does this break mail flow for you please? Can you give me an example?
Peter, Thank you.
When I add any email domain in office 365 and verify this.> Obviously the domain will become Authoritative but it should not break mail flow to on-premise exchange , but it does.
after verifying all these email domains I will be running Azure AD Connect to Sync and convert them manged.
