For more information, you can find detailed documentation on HCL Product Documentation and HCL Notes and Domino Wiki . If you'd like, I can:
Show you in the configuration document Provide a step-by-step for creating QuickRules for users anti spam lotus notes
Enable SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) on Domino 12+ servers to identify and move untrusted mail to users' Junk folders. For more information, you can find detailed documentation