This task can be performed using Cleanbox
Email aliases, AI spam filtering, and a full SMTP relay
Best product for this task
Cleanbox
productivity
Cleanbox sits between the internet and your inbox. Every incoming email goes through spam scoring, virus scanning, AI classification, and your own rules before delivery. Create unlimited aliases that forward to your real inbox, build custom filters, and use Cleanbox as a complete SMTP relay. Works with Gmail, Outlook, iCloud, Yahoo, or any IMAP provider, no migration needed. Privacy-first: no advertising, no data selling, no user profiling.

What to expect from an ideal product
- Supports unlimited aliases so each team member or project can have a dedicated address without exposing real inboxes
- AI classification and custom rules run before delivery, meaning filtering logic is enforced consistently across the whole team rather than per-client
- Works with any IMAP provider—Gmail, Outlook, iCloud—so remote teams with mixed setups can adopt it without migrating accounts
- SMTP relay capability lets outbound mail route through Cleanbox, keeping send and receive infrastructure unified
- No advertising, profiling, or data selling, which matters for teams handling client correspondence or sensitive project communication
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