SuperMailOS

All your domains in one inbox

SaaSListed Aug 2026

About SuperMailOS

SuperMailOS lets you connect multiple domains and receive mail from all their addresses in a single inbox. You pay per person rather than per mailbox, with unlimited free aliases on every domain. The service handles deliverability through DKIM, DMARC, and domain warm-up, and works with standard email clients via IMAP and SMTP.

At a glance

Aug 2026

Listed since

SaaS

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About SuperMailOS

At a glance