Product

Use your own domain for project email

Make addresses like [email protected] and [email protected] while Sixuse handles routing, verification, and operational visibility.

Add a custom domain

Guided DNS setup

Sixuse detects common DNS providers, presents the exact records you need, and verifies the domain before accepting mail. Cloudflare users can sync supported records automatically; other providers can use the manual instructions.

Professional addresses without another mail server

Keep your product's public identity on your domain while routing messages to the destination your team already trusts. Add identities per project instead of managing separate mailboxes.

Start with the custom domain setup guide or read the quickstart.