Cleanbox

Cleanbox sits between the internet and your inbox. Every incoming email goes through spam scoring, virus scanning, AI classification, and your own rules before it reaches you. It works with Gmail, Outlook, iCloud, Yahoo, or any IMAP provider, no migration needed.

What makes Cleanbox different from other alias services is the scope. Most tools in this space stop at forwarding. Cleanbox combines aliasing with a complete inbox layer: AI-driven spam detection, a deep custom filter engine, per-alias delivery controls, automatic sender categorization, and a full inbound SMTP relay. It is built for people who want serious control over their inbox without running their own mail server.

Email aliases Create unlimited addresses like shop@cleanbox.me, or use your own custom domain. Every alias forwards to your real inbox and can be disabled in one click. One alias per service means you always know who leaked your address.

AI spam detection with explanations Cleanbox combines rspamd's Bayesian classifier with an AI layer that detects brand impersonation, social engineering, and scam structures. Every verdict comes with a plain-language explanation, and you can train the filter by rating messages. Crowd-sourced sender reputation improves detection for everyone.

Custom filter engine Build your own rules, from simple to advanced. 10 condition types, regex support, nested ANY/ALL logic, and 40+ ready-made templates. Test new filters against your past inbox before activating them.

Full SMTP relay Point your domain's MX records to Cleanbox and every email is scanned before it reaches your mail server. ClamAV virus scanning, IP blacklist checks against Spamhaus, Barracuda, and SpamCop, and full rspamd analysis. No other alias service offers a complete inbound SMTP relay as part of a standard plan.

Shield: three protection layers per alias A Rate Limiter (cap emails per sender per hour, day, or week), a Snoozer (hold emails outside your chosen delivery windows), and a Gatekeeper (whitelist-only mode for sensitive aliases).

Contacts and unsubscribe Every sender is automatically categorized into one of 20 categories such as shopping, finance, or social. Whitelist, prioritize, mute, or block individual senders with one click. One-click newsletter unsubscribe via RFC 8058 that actually works.

Cloud attachment storage Cleanbox automatically extracts and stores attachments, organized per sender. Files persist independently of message retention, so you never lose an attachment when an email is deleted.

Privacy-first No advertising, no data selling, no user profiling. Cleanbox was built from personal frustration with existing tools that promised privacy but felt clunky, paired with the daily reality of newsletters that never stopped and unsubscribe links that did nothing.

Free plan available with 3 aliases. Paid plans start at $5 per month, or $3.50 per month billed yearly. No credit card required.