Domain lookup

    tuta.io email verification

    Check whether an email address at the tuta.io domain is valid, deliverable and safe to send. Free single checks, no signup required.

    5 of 5 free checks left today — no signup required.

    Syntax check

    Confirms the address follows the correct format for tuta.io.

    MX & domain validation

    Verifies that tuta.io has active mail exchange records.

    SMTP mailbox test

    Checks the mailbox existence without sending an email.

    About the tuta.io mail provider

    Newer Tuta domain for encrypted mailboxes.

    Provider
    Tuta
    Type
    Privacy-focused
    Catch-all
    rare

    New to verification? Read the complete email verification guide or browse the full domain directory.

    Frequently asked questions

    How do I check if an email address at tuta.io is valid?

    Enter the address in the verifier above. VeriMailX checks the syntax, resolves the MX records for tuta.io, opens an SMTP conversation with the receiving mail server and reports whether the mailbox accepts mail — without sending an email.

    Is tuta.io a catch-all domain?

    Catch-all configuration is set by whoever administers tuta.io, and it can change at any time. A live verification tells you whether the server accepted the specific address or accepts everything, which is why catch-all status is reported per check rather than stored as a fixed value.

    Can I verify a bulk list of tuta.io addresses?

    Yes. Upload a CSV of up to 50,000 rows per file, or call the API for real-time checks at signup. Results include deliverability status, disposable and role-based flags, and a confidence score for each address.

    Verify email lists at scale

    Upload a CSV, connect via API or set up auto-revalidation for tuta.io and any other domain.

    Start free verification