Creating a Support Email for your Organization in Office 365
To add a support email, create a new user in the Office 365 Admin Portal: https://portal.office.com/adminportal/. Select Users->Add a User: Enter Support and select a product license: Click Add. The new support email will then be created: You can log into the account and start receiving emails. Once configured, you can link the account to Dynamics 365 for automatic case creation.