What is Domain Coexistence for ODM (4248704)

What Domain Coexistence can provide to On Demand Migration (ODM) customers?

On Demand Migration offers the domain coexistence services, allowing your employees to send mail from new addresses and access cross-tenant data before the migration is finished.

• The outgoing mail addresses are substituted with the target ones, while all incoming mail is automatically redirected to the source mailbox.

• Calendar Sharing allows users from the source and target tenants to see each other's free/busy information.

Important: Email addresses are only rewritten when sending externally, they will not be written for recipients in either your source or target Office 365 tenants.

Important: The service only works with accounts that have pairs in the target tenant.

Note: Address Rewrite Service requires additional licensing.