{"id":3049,"date":"2025-12-02T03:45:45","date_gmt":"2025-12-02T03:45:45","guid":{"rendered":"https:\/\/pheonixsolutions.com\/knowledge-base\/?p=3049"},"modified":"2025-12-02T03:45:55","modified_gmt":"2025-12-02T03:45:55","slug":"how-to-enable-greylisting-in-whm","status":"publish","type":"post","link":"https:\/\/pheonixsolutions.com\/knowledge-base\/2025\/12\/02\/how-to-enable-greylisting-in-whm\/","title":{"rendered":"How to Enable Greylisting in WHM"},"content":{"rendered":"\n

Introduction<\/strong><\/p>\n\n\n\n

Greylisting is an effective email security feature available in WHM that helps reduce unwanted spam emails. When Greylisting is enabled, the mail server temporarily rejects emails from unknown or suspicious senders on their first attempt. Legitimate mail servers will retry after a short delay, while most spam servers do not retry, resulting in automatic filtering of spam messages.<\/p>\n\n\n\n

Prerequisites<\/strong><\/p>\n\n\n\n

1. WHM login access to the server.<\/p>\n\n\n\n

2. Root-level permissions to manage email settings<\/p>\n\n\n\n

3. The server must be using Exim (the default mail server in cPanel).<\/p>\n\n\n\n

4. A working domain configured to receive emails.<\/p>\n\n\n\n

5. Basic knowledge of navigating WHM menus.<\/p>\n\n\n\n

Step 1: Log in to <\/strong>WHM<\/p>\n\n\n\n

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Step 2:<\/strong><\/p>\n\n\n\n