Here are some potential steps to troubleshoot the printer:

1. Unplug the printer from the power source, and plug the printer back in.
2. Make sure the printer is connected to the same network as the device sending the file.
3. Check the printer’s settings to make sure it is set to scan to email.
4. Ensure that the device sending the file is able to send out emails.
5. Restart the printer to ensure it is running the most up-to-date software.
6. Verify that the printer’s firmware and driver are up to date.