This article explains the steps required to set up a forwarding address for a Microsoft Exchange account.

It is not possible to set up a forwarding address if your domain is assigned to a Microsoft Exchange contract. To set up a forwarding address, you must transfer the domain to another contract assigned to the same customer number. Further information on this can be found in the following article: Transferring a domain to another IONOS contract (same account number).

The following article explains how to set up email forwarding:

Creating a forwarding email address

The following article explains how to use inbox rules to automatically forward messages sent to your Microsoft Exchange mailbox to another email account:

Forwarding email messages by setting up inbox rules (Outlook Web App)