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 existing inbox provider (Gmail, Outlook, iCloud, Yahoo, or IMAP) without requiring account migration
- Provides a full SMTP relay so outbound mail routes through a single authenticated point regardless of which team member sends it
- Supports unlimited email aliases, letting teams create role-based or project-specific addresses without exposing real inboxes
- Applies AI spam scoring, virus scanning, and custom rules to every inbound message before delivery, reducing noise across shared aliases
- Privacy-first architecture with no advertising, user profiling, or data resale, which matters when routing business mail through a third-party relay
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