This article describes how to use the Spam Filters tool in cPanel to reduce the amount of unwanted e-mail (spam) in your e-mail accounts. Spam Filters (powered by Apache SpamAssassin™) is an automated filtering system that uses a variety of techniques to identify and filter spam messages.
Spam can be a major annoyance, with messages filling up user inboxes. Additionally, spam messages can contain virus attachments or malicious links.
When you enable Spam Filters, powered by Apache SpamAssassin™, it uses scores to rate the likelihood that a message is spam. You can manage messages that Spam Filters marks as spam in a number of ways. For example, you can route messages marked as spam to specific folders, or you can automatically delete them.
To enable Spam Filters in cPanel, follow these steps:
To enable auto-deletion of spam messages, click Automatically Delete New Spam (Auto-Delete).
You can further customize the parameters to control how Spam Filters examines incoming messages. You can also define whitelists (trusted senders) and blacklists (known spammers).
To customize Spam Filters in cPanel, follow these steps:
To configure whitelists, click Edit Spam Whitelist Settings:
To configure whitelists, click Edit Spam Blacklist Settings:
To configure spam score settings, click Configure Calculated Spam Score Settings:
The URIBL_* tests check blacklists such as Spamhaus. The RDNS_NONE test checks to see if the sending IP address has a reverse DNS entry, while the DCC_CHECK test checks the DCC checksum database to detect bulk mail. If you later want to reset these scores to their default values, use the following test scores:
You can disable Spam Filters whenever you want. For example, if you are unable to receive a non-spam e-mail message, you can disable Spam Filters and ask the sender to resend the message so it reaches your account.
To disable Spam Filters in cPanel, follow these steps:
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