Email domain check
Is tuta.io a disposable email domain?
No: tuta.io is a free email provider. Here is what that means for your signup form, with mail-server data checked in Oct 2026.
No. tuta.io is a free email provider with mail handled by Tuta. Signups from it are real people, but one person can hold many addresses.
tuta.io at a glance
| Check | Result |
|---|---|
| Type | Real mailbox provider |
| On the disposable list | No |
| MX records | mail.tutanota.de |
| Mail operator | Tuta |
| Same inbox as | tuta.io |
| Ignores dots in the name | No |
| +tag aliases reach the same inbox | Yes |
| Same mail servers as | tutanota.com |
| Checked | Oct 2026 |
Signups from tuta.io: real people, repeat trials
tuta.io is not disposable, so blocking it would turn away genuine customers. The risk is different: the same person signing up again and again to restart a free trial. A +tag (jane+7@tuta.io) reaches the same inbox as the plain address.
Try it in the Gmail alias checker, or see how Vetto flags alias farms on the landing page.
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Frequently asked questions
Is tuta.io a disposable email domain?
No. tuta.io is a regular mailbox provider (mail handled by Tuta). People keep these inboxes for years, so a signup from tuta.io is a reachable person.
Can one tuta.io user sign up many times?
Yes, through +tags (jane+2@tuta.io) or by opening extra accounts. Vetto strips +tags to spot the same inbox signing up again.
Should I allow tuta.io on a B2B signup form?
Usually yes: founders and freelancers sign up with personal addresses. If you only sell to companies, Vetto's work-email policy can warn or block free providers like tuta.io without touching anything else.
Give your signup form sharp eyes.
Free on one site. One line of HTML. Remove it any time and your form works exactly as before.
Founding offer: Pro for life for $69 once, first 100 buyers, until Nov 27.