Web App
SuperMailOS
Every domain you own. One beautiful inbox.
Business email for people who run more than one thing. Every domain in one inbox, free aliases on all of them, deliverability handled.
Try SuperMailOSInside the product
SuperMailOS features
Unlimited aliases
All your domains
Shared mailboxes
Managed SPF, DKIM & DMARC
Works with any app
API, webhooks & AI
Try SuperMailOS now
SuperMailOS is live and free to try — jump straight into the app.
Try it on supermailos.com