The best email services that ask for no phone number and no personal data
A mailbox that does not ask for your phone number is easy to find. Tuta, Posteo and Mailbox all let you register without handing over a number, a name or an address, and Posteo will even take payment in cash sent by post. What is harder is understanding what that buys you, because signing up anonymously and staying anonymous afterwards are two different things.
Start with the baseline. Google's own help page says that "before you create an account or sign in, sometimes phone verification is required to confirm you're a real person". Tuta's position is the opposite: "when you create a gratis Tutanota account, for instance, we only store the email address - nothing else". Posteo states plainly that "you do not have to enter any personal information during signup (such as your name or address)".
Who does not ask for a phone
Four services stand out, and they differ in ways that matter more than the marketing pages suggest.
| Service | No phone | No second mailbox | IP hidden in mail | Free | Jurisdiction |
|---|---|---|---|---|---|
| Tuta | yes | yes | yes | yes | Germany |
| Posteo | yes | yes | yes | 1 EUR/month | Germany |
| mailbox.org | yes | yes | yes | paid | Germany |
| Proton Mail | sometimes SMS | sometimes | no logs by default | yes | Switzerland |
| Mailfence | yes | external address required | logs IPs | yes | Belgium |
| Gmail | sometimes required | recovery address | not stated | yes | USA |
Tuta is the only one of these where a free account, no phone and stripped headers come together. The company says it "strips IP addresses from anonymous emails sent and received", and password recovery runs on a 64-character recovery code rather than a phone number, which is the part people forget to write down.
Posteo and mailbox.org are paid. That is not a drawback here, because both accept anonymous cash payment sent by post, so the money trail never becomes the identity trail. Posteo says its outgoing messages "contain neither your local nor your public IP address", mailbox.org advertises "anonymised mail headers that do not contain user information about IP addresses or software used".
Mailfence is the odd one out. It does not ask for a phone, but its privacy policy says registration requires "an external email address" for activation, and that the service collects "IP addresses, message-ID's, sender and recipient addresses, subjects, browser versions, countries and timestamps". The external address you use becomes the link back to you. Signal is going the same way for messaging, where sign-up without a phone number is being built as a paid Signal Login.
The trap is in verification and recovery
Signing up over Tor or a VPN often changes the rules. Tuta warns that accounts are "automatically marked for approval to prevent spammers from signing up. This is often the case when you sign up via Tor or a VPN", with activation arriving within 48 hours. Proton's help page is blunter: users are more likely to be offered only email or SMS verification if they "use the Tor browser".
Recovery is the second trap, and it is the one that catches people months later. A provider that never asked for a phone at signup may still offer you only one way back into a locked account, and if that way is a phone number added afterwards, the anonymity you set up on day one is gone. Write down the recovery code, keep it offline, and do not attach a number "just in case". For throwaway correspondence an alias is often enough, and Brave now builds email aliases into the browser.
No phone does not mean anonymous
The clearest illustration comes from Proton itself. After Swiss authorities ordered it to collect data on an account used by a climate activist, the company explained that it had received "a legally binding order from Swiss authorities which we are obligated to comply with" and that "there was no possibility to appeal this particular request". Its own conclusion is worth quoting in full: "The Internet is generally not anonymous, and if you are breaking Swiss law, a law-abiding company such as Proton Mail can be legally compelled to log your IP address."
Nothing in that story required a phone number. The account was reached through the network, not through the registration form, which is why the headers question and the onion access question matter more than the signup question. Proton runs an onion site for exactly this reason; Tuta, Posteo and mailbox.org lean instead on stripping the IP before the message leaves.
This is also the one place where a VPN genuinely changes something, and it is worth being precise about what. It replaces the address your mail provider sees when you register and when you log in, which is the address that would end up in any lawful logging order. It does not replace a phone number, it does not unlock a service that demands SMS, and it can make signup slower, because providers treat VPN ranges as spam risk.
- Pick a provider that does not require a phone and does not require a second mailbox: Tuta free, or Posteo and mailbox.org if you can pay anonymously
- Save the recovery code offline before you need it, and do not add a phone number to a private account later
- Register over a network that is not your home one if the goal is to keep the signup address out of the record
- Check the headers of a message you send: if your IP is in there, the mailbox is not doing the job you chose it for
- Remember that content encryption and account anonymity are separate promises, and most providers only make the first one
