Anonymous Email Alias Services: 5 Options, Ranked (2026)

The best anonymous email alias services in 2026 are addy.io for most people, SimpleLogin as the runner-up, and DuckDuckGo Email Protection as the free budget pick. All three hide your real address from the sites you sign up to. None makes you anonymous to the alias provider itself, or to a court order served on it.

An alias service is pseudonymous: the shop and the marketplace stranger see a forwarding address, while the relay keeps a record linking every alias to your real inbox. Firefox Relay and Apple’s Hide My Email work the same way. The full ranking:

1. addy.io: unlimited free aliases, PGP forwarding on every plan, three-day logs.
2. SimpleLogin: free replies, a Swiss operator, a published independent audit.
3. DuckDuckGo Email Protection: free, effectively unlimited random addresses, no stored messages.
4. Firefox Relay: 50 free masks, but replying needs Premium.
5. Apple Hide My Email: convenient inside iCloud+, with the roughest 2026 record.

What does “anonymous” mean for an email alias?

It means the recipient cannot see your real address. It does not mean nobody can. Four parties see something, and an alias service only changes what the first one sees:

• The site you sign up to sees the alias, unless your name or real address rides along in a signature or quoted text. DuckDuckGo says outright that because it doesn’t create the message, it “can’t guarantee” your forwarding address won’t appear in the body.
• The alias provider sees which alias got mail, from whom and when, plus the content unless you turn on PGP forwarding. Privacy Guides puts it plainly: aliasing “requires trusting both your email provider and your aliasing provider with your unencrypted messages.”
• Your mailbox provider reads everything forwarded to it. If that inbox is a Gmail account tied to your phone number, the trail ends at you; a free encrypted mailbox that doesn’t ask for a phone number closes that gap.
• Anyone with a valid legal order to the alias provider can get the record of which account owns which alias.

That last one is no longer hypothetical. In March 2026 404 Media reported from a court filing that Apple gave the FBI the real iCloud address behind a Hide My Email alias used to send a threatening email. 9to5Mac’s account adds that it was one of 134 aliases on the same account, so one request surfaced the whole set. Aliases defeat marketers, not subpoenas. What email metadata leaks covers what else travels alongside an address.

Threat models served

1. Data brokers and ad-tech joining your accounts by email address. Winner: DuckDuckGo Email Protection. It is free, creates “unlimited unique private email addresses on the fly,” and strips hidden trackers from forwarded mail. Its random addresses share one domain with every other user, so nothing in them connects your accounts. addy.io’s standard aliases fail here because each carries your username subdomain, the same problem Privacy Guides flags with a single-user custom domain, which lets sites track you “simply by looking at the domain name.” Use addy.io’s random shared-domain aliases instead. Why your email ends up on data broker lists explains the matching.

2. A stranger who will write back: a marketplace buyer, a landlord, a first date, or an ex who could use your address to find your other accounts. Winner: SimpleLogin. Its free plan includes replies from an alias, so the thread runs both ways without exposing your real address. addy.io’s free plan has no replies, and Firefox Relay keeps them for Premium. Delete your signature before replying.

3. You don’t want the relay itself, or whoever compels it, reading forwarded mail. Winner: addy.io. You can add your own OpenPGP public key per recipient on every plan, so mail is encrypted before it reaches your inbox; SimpleLogin reserves PGP for Premium. Privacy Guides notes this cuts the parties you must trust “from two to one.” It does not hide who wrote to you, or when.

The five services side by side

Limits and prices from each vendor’s pages, checked 2 October 2026:

The logging policies differ more than the marketing does. addy.io’s privacy policy says Nginx logs recording IP addresses are rotated daily and kept for three days, and go to no one “other than when compelled by law.” SimpleLogin’s policy deletes logs older than seven days, holds undeliverable mail for seven days, and promises to tell you about a warrant or court order “unless we’re legally prevented from it.” DuckDuckGo says it never saves forwarded messages, not even the to and from headers.

Firefox Relay’s free tier rose from 5 masks to 50 with Firefox 150.0.1 on 28 April 2026, although Mozilla’s Premium page still said five on 2 October 2026 and showed a waitlist rather than a price.

The catch

Each one has a weakness the sign-up page does not lead with.

• addy.io: free standard aliases all expose the same username subdomain, which links them to each other, and the 10 MB monthly bandwidth cap drains fast on image-heavy newsletters. Per its FAQ, it is run by one UK developer.
• SimpleLogin: Swiss jurisdiction is not a refusal to comply. Proton’s transparency report does not break out SimpleLogin, but for Proton Mail it lists 9,301 legal orders in 2025, 988 contested and 8,313 complied with. If Proton already holds your mail, VPN and passwords, adding aliases concentrates even more with one company.
• DuckDuckGo: a US company with no encrypted forwarding, so your inbox provider reads everything, and replies fail if your forwarding address sits on your own domain without an SPF record.
• Firefox Relay: replying, the feature that makes aliases usable for real correspondence, sits behind a Premium tier that may not be open to you.
• Apple Hide My Email: beyond the FBI case, a researcher found that sending a user mail that got rejected as spam put their real address in email logs. MacRumors reports the flaw was reported in June 2025 and patched in July 2026, and the researchers advise treating any alias created before 7 July 2026 as possibly exposed in third-party logs.

One catch applies to all of them: payment. A card ties your name to the account. addy.io’s privacy policy names NOWPayments, a cryptocurrency processor, alongside Stripe, and SimpleLogin accepts cryptocurrency through ProxyStore.

How to verify each claim yourself

1. Run a reply-leak check. From a second account you own, send a message to one of your aliases, reply through the alias, then open the reply’s full original in the second account (Gmail calls it “Show original”). Search it for your real address, your mailbox domain and your name. How to read email headers shows where each field lives.
2. Find the number in the privacy policy. Look for a log-retention period in days. addy.io says three, SimpleLogin seven. A policy with no number tells you nothing.
3. Open the audit and the transparency report, not the badge. SimpleLogin links Securitum’s 2022 report on its web app and Android app; the browser extensions and iOS app were out of scope. addy.io’s server code is public under AGPL-3.0, which is not an audit but lets anyone inspect it. In Proton’s annual report, note what it does not split out.
4. Confirm PGP forwarding works. After adding your public key, open a forwarded message on a device without your private key. You should see ciphertext, not the message. How to set up PGP email encryption covers creating the key.
5. Rotate older Apple aliases. On iPhone, go to Settings, tap your name, then iCloud, then Hide My Email, and replace aliases created before 7 July 2026 on accounts where exposure would matter.

Pricing

Checked 2 October 2026, in US dollars:

• addy.io: Free; Lite $1 a month billed yearly; Pro $3 a month billed yearly or $4 monthly.
• SimpleLogin: Free; Premium $36 a year or $4 a month, bundled with Proton Pass premium.
• DuckDuckGo Email Protection: free.
• Firefox Relay: free; Premium price not displayed while the waitlist is up.
• Apple Hide My Email: requires iCloud+, from $0.99 a month for the 50 GB plan, billed monthly; Apple says you can create “as many addresses as you need.”

The free tiers are the trial: run one for a month before paying for a year. For the top two head to head, read addy.io vs SimpleLogin compared, and for a ten-minute install path, how to set up email aliases.

FAQ

What is the best free anonymous email alias service?

DuckDuckGo Email Protection is the best fully free option for most people: effectively unlimited random addresses, tracker stripping and free replies. Choose SimpleLogin if you want a Swiss operator and can live with 10 aliases, or addy.io if you want unlimited aliases with PGP encryption and forward under 10 MB a month.

Can an email alias be traced back to me?

Yes, by the alias provider and by anyone who can compel it. The provider stores which account owns each alias, and Apple handed that record to the FBI in 2026. Leaks happen in normal use too: a signature, quoted text or a relay bug can reveal your real address to whoever is on the other end.

Is Apple Hide My Email safe to use?

For keeping marketers and data brokers away from your real address, yes, provided you rotate older aliases. Apple patched a flaw in July 2026 that could expose real addresses through rejected-mail logs, and researchers advise treating aliases created before 7 July 2026 as possibly exposed. It offers no encrypted forwarding to your inbox.

What is the difference between an email alias and a temporary email?

An alias is permanent and forwards to your real inbox until you switch it off; a temporary address expires. Privacy Guides points out that aliases “can be turned on again” when you need a password reset, which a disposable inbox cannot do. Use temporary addresses only for accounts you will never log into again.

Related across the network

• Secure Mail: What It Protects and How to Set It Up — securemailguide.com
• How to Set Up Proton Mail: 2FA, Bridge & Custom Domain — securemailguide.com