UnderSource
Secure .SMail workspace
Live business-ready messaging
?
No user
—
☰ Folders & files
System folders
    Business files + File
      👥 Contacts & threads
        ?
        No conversation selected
        Choose a contact or compose a new message.
        Signed in as no user · All addresses end with .SMail
        Local-only · Demo workspace Business-ready threads & files
        UnderSource .SMail
        Create your workspace identity. Your address will always end with .SMail.
        Local secure sandbox
        Display name
        Email handle
        .SMail
        Preview identity
        —
        Business profile
        Address
        —
        .SMail
        Your identity is stored only in this browser. No servers, no tracking.