Hi,
We have Exchange 2010 Hybrid with Office 365. MX record points to our onprem Exchange. After another company bougth us we have request to change the MX record. MX record needs to point on another organizations Exchange. They will add our domain as Internal relay domain. So every mail for our organization would go through their Exchange. So my question is will this affect our Hybrid deployment? Can it be done? Do we need to change Hybrid deployment?
