You need to add the following addresses to the list of Allowed Sites:
*gmail.com and *google.com
Besides, you also need to enable secure web pages(site that has https in its full address):
1. Launch iNet Protector, click Settings.
2. Click to open Allowed Services tab.
3. On the Allowed Services tab, make sure the Secure Web Pages is checked.
4. Click OK to save settings.