If your Gmail not receiving forwarded emails then you need to check the filter settings. In some situations, users fail to receive forwarded emails because of the filter settings. In such situations, there are chances that user repeatedly selects mark as spam option for forwarded emails then Gmail might filter all the forwarded emails as spam. To troubleshoot the issue, it is advisable to the users to allow the forwarded messages under the settings. This is how users can smoothly troubleshoot the issue of .