Guide
How to move an existing account to an email alias
You do not have to start over. Move your old accounts to aliases one at a time, starting with the ones that matter least.
Writing
Notes on building a private email service.
What we are building, what we decided against, and the things about email privacy that are worth explaining properly.
Guide
Email aliases for online shopping: a practical guide
Give every shop its own address. When one starts sending junk or gets breached, you switch off that one and nothing else changes.
Guide
How to reply from an email alias, step by step
A reply is where your real address leaks. Here is how replying through an alias works, and the mistakes that undo it.
Explainer
What is an email tracking pixel? What senders learn
A one-pixel image can tell a sender when you opened a message. How pixels and link parameters work, and what removal can and cannot do.
Earlier
Explainer
What Skudo can hand over when a court orders it
An alias service cannot promise what it does not hold. Here is what Skudo stores, what a valid order can reach, and what stays out of reach.
Product
Why we stopped asking for a username
The first thing our signup asked for was the thing that mattered least, and the thing most likely to fail.
Explainer
What a warrant canary cannot do
A canary is evidence, not a guarantee. Knowing the difference is the only way to read one correctly.
Guide
What happens to your address when a shop is breached
Your address does not leak once. It leaks, gets combined with other leaks, and is still being sold years later.