Run the installer. On the SmartDiscover page, enter your
Email address and
Password, do
not tick the box
Skip SmartDiscover and configure manually. Click Next.

In the next step, the License activation dialog is shown.

If you were granted a license for IceWarp Outlook Sync, click Yes. If you want to use IceWarp Outlook Sync within the scope of 30-day trial period first, click No.