I do not get a new password via email using forgot password with Viewcam Manager.
I have checked the user guide and didn't find anything related to Forgot Password?. The software used for the camera has a Change Password feature that allows you to replace the existing password with a new one, and that's it. However, if you can't access the management interface, use the manual below to read on how to reset it without the password. These cameras have a reset function that can be triggered in a certain way to remove the settings and other possible locks.
User manual: http://issuu.com/bastiaanroest/docs/viewcam_manager_for_windows_v8.e.07