Azure Email Communication Services is not designed to function as a traditional email hosting service, so you cannot use it to connect an email client such as Outlook to send and receive emails.
Azure Email Communication Services is primarily used to send transactional emails such as password resets, account confirmations, and other notifications. You can integrate it into your web app to send these types of emails to your users.
If you need a traditional email hosting service, you can use Microsoft 365 or Exchange Online. These services provide email hosting as well as other productivity tools like Microsoft Office, OneDrive, and SharePoint. You can use Outlook to connect to these services to send and receive emails.