Altigen AltiWare OE Release 4.0 Administration Manual page 188

Data and Internet Integration
Click Options... to open the Options dialog box, and select Mail Delivery
if under Internet Only mode (or Mail Services if under Corporate or
Workgroup mode).
Figure 75. Outlook Options
Click button Reconfigure Mail Support... to open the E-mail Service
Options dialog.
Figure 76. Email Service Options
You can see there are two options you can choose. Please select Corporate
or Workgroup and click Next. When a dialog box pop up, click Yes.
178 AltiWare OE System Administration Manual