Find out who leaked your email address.
Give every site its own address. Mail still reaches your real inbox, and the site never learns where that is. When one of those addresses starts hearing from strangers, you know which site let it go, and you switch it off.
- The phantom
- shoe-shop.k7m2xq
@phantomshield.com The only address the shoe shop gets. - Behind the shield
- Your real address. The shop never sees it.
How it works
-
Give each site its own address
When a site asks for your email, make an alias for it. That takes a few seconds, and from a phone's home screen a single step.
Shoe shop shoe-shop.k7m2xq
@phantomshield.com -
Read the mail where you always do
Messages are forwarded to your real inbox. Reply as you normally would and your answer goes out from the alias. The sender only ever sees the alias.
- From
- Shoe Shop - news at shoeshop.example
- To
- shoe-shop.k7m2xq
@phantomshield.com
-
See who passed it on
Each alias learns who normally writes to it. When a sender it has never heard from turns up, the alias is flagged as a possible leak and you get an email. Lock the alias and only the senders it already knew get through, or switch it off and all its mail is refused. Your other aliases carry on.
Possible leak Off 212 messages refused since.
Without leaving the sign-up form
The browser extension makes an alias for the site you are on and fills it into the form: click its button, or right-click the box that asks for your email address. It needs no access to the pages you visit until you ask it. Get it for Chrome or Firefox.
A warning before it reaches you
When the aliases that several people made for the same site start being flagged, everyone else with an alias for that site is told. Often that is before their own address has had a single stray message, and in time to lock it. You are told how many accounts it was, never whose.
What is kept about your mail
- In your history
- For each message: the alias it was sent to, the time, and the sender's domain. For each alias: the addresses that have written to it, so that you can reply. They are erased when you delete the alias.
- Not kept
- Subjects and contents. A message passes through to your inbox and is gone from here.
- In the mail server's log
- Sender and recipient addresses and delivery times, as on any mail server. Never subjects or contents.
- On this site
- Nothing is loaded from anyone else. No analytics, no outside fonts, no outside scripts.
Or use a domain of your own
Point a domain you own at PhantomShield and make your aliases there, under any names you like: shoes@yourname.com. They are forwarded, flagged and locked like every other alias. Switch on the domain's catch-all and you can make a name up on the spot: the alias is made when its first message arrives. And because the domain is yours, the addresses stay yours wherever you take it.
What it costs
14 days free, with no card needed. After that, $3 a month or $30 a year, for everything on this page. Sales tax or VAT is added where it applies.