When a new business is acquired and needs to receive emails addressed to them, what steps should you take?

The chosen answer is correct because setting up a Default route with split delivery is an effective method for managing incoming emails for a newly acquired business while ensuring that email delivery is seamless during the transition period. In this setup, the emails sent to addresses associated with the acquired business can be routed appropriately, allowing for both the cloud and on-premises environments to handle the incoming traffic based on defined conditions.

With the split delivery approach, emails that are destined for the acquired company's domain can be directed to the necessary destination, whether that's an on-premises server or a cloud service, depending on the configuration. This allows the organization to maintain continuity during the transition, ensuring that important communications are not lost and that employees at the acquired company can access their emails without disruption.

In contrast, the other options do not provide the same level of operational efficiency or reliability needed for managing email during this acquisition phase. For example, setting up an Outbound Mail Gateway is focused on outbound email, which does not address the immediate need to manage incoming emails for the new business. Additionally, simply setting up accounts for new employees with mail forwarding rules may lead to complexities in management and potential delays in email delivery. An Inbound Mail Gateway could also address inbound emails, but it may not be