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
- Works with any IMAP provider so you can classify and filter without changing your existing email address or provider
- AI classification runs before delivery, meaning your inbox receives only pre-sorted, scored messages rather than requiring client-side rules
- Supports unlimited aliases so you can assign distinct inbound paths per sender category, project, or privacy tier
- Includes spam scoring and virus scanning in the same pipeline, eliminating the need for separate filtering layers
- No data profiling or advertising model, which matters when the service reads every message to classify it
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