Regularly audit and remove old spam rules to keep the mail file optimized.
Suggest recommended by the community Let me know which area you'd like to explore further. How do I control spam and other junk mail? anti spam lotus notes
Anti-spam strategies for Lotus Notes (now HCL Notes/Domino) in 2026 involve a combination of built-in server-level controls and user-level client tools to manage junk email and phishing attacks. Modern approaches focus on using SMTP-inbound edge servers, SPF/DKIM validation, and third-party tools to handle sophisticated spam, as native filtering alone is generally considered insufficient for modern threats. 1. Server-Level Anti-Spam Measures (Domino Administration) Regularly audit and remove old spam rules to
Notes/Domino has a "MailMaxFilters" setting. More than 100 rules can significantly slow down the router. anti spam lotus notes