Configure DNS Blacklists (DNSBL) to drop connections from known spam hosts before they enter the network.
Show you in the configuration document Provide a step-by-step for creating QuickRules for users anti spam lotus notes
Administrators can create server-side mail rules to block malicious domains or keywords within the body or header of messages. Configure DNS Blacklists (DNSBL) to drop connections from
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) Modern approaches focus on using SMTP-inbound edge servers,
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?
If phishing emails pass through, they should be reported to the IT department for blocking at the server level, rather than just using personal junk folders.
Users can add/remove senders from the Junk list in their mail file. 3. Best Practices & Tips