How does Cleanbox detect spam?
A look at Rspamd, sender reputation, IP blacklists, and the spam scoring system.
Spam Protection
Spam Protection
How Cleanbox detects and handles spam, including scoring, training, and email authentication.
Understanding the spam scoring system in detail
How Rspamd scores are calculated, what Cleanbox custom symbols mean, and how user feedback improves detection.
Setting spam thresholds and quarantine sensitivity
How to adjust spam thresholds per alias to control which messages get delivered, quarantined, or rejected.
How to read a spam report
Every message has a spam report showing exactly which rules triggered and how the score was calculated. Here is how to interpret it.
How spam training works
How your spam and legitimate feedback trains the filter for you and all Cleanbox users - and when to use it.
How AI spam classification works
How Cleanbox uses AI to analyze email content, detect phishing and scams that traditional filters miss, and explain its reasoning in the X-Cleanbox-Explanation header.
How Intelligence works: AI, Bayes, and reputation
A guide to the Intelligence page -- how to configure AI filtering, Bayesian learning, and community reputation settings.
How DNS blacklists (DNSBL) work
What DNSBL is, how IP addresses end up on blacklists, which providers Cleanbox checks, and how to handle false listings.
What is SPF, DKIM, and DMARC?
A simple explanation of the three email authentication standards and why they matter.
How to protect your email address from data breaches
Practical steps to minimize exposure when services you use get hacked.
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