Sign in with email

Email sign-in is a second way to sign in, next to Google. It is off until the operator of the deployment turns it on and sets a sender address for the mail. While it is off, the sign-in page shows Google only, and fermium.app/app/login looks exactly as before. If the sender is not set, the page says "sign-in by email is not available yet" and sends nothing.

Create an account

1. Go to fermium.app/app/login?intent=signup, enter your email address and tick the Terms of Service and Privacy Policy boxes.
2. Fermium sends one mail with a link. No account exists yet.
3. Open the link and press Confirm and continue. The link works once and expires in 24 hours. The button matters: a mail scanner that only opens the link does not use it up.
4. You are signed in. Your account exists from this moment.

The page gives the same answer for every address, so it does not tell anyone whether an address already has an account. If the address already has one, the mail says so and points to sign-in.

Add a password or a passkey

An account created this way has no password yet. Open Settings, then Sign-in, then Your sign-in methods.

• Password. Choose Send me a link to add one. Open the link and choose a password of at least 12 characters. The same link, from Forgot password? on the sign-in page, resets a password; a reset also signs out every other session and revokes API tokens.
• Passkey. Choose Add a passkey and follow your device. Passkeys use your device's lock or a security key, and Fermium stores only a public key. You can remove one at any time, except your last way to sign in.

Adding or changing a method needs your address confirmed within the last 30 minutes. If Fermium says to confirm again, use Send me a link and open it.

Sign in

On the sign-in page, enter your email address and password, or choose Sign in with a passkey. A wrong password and an unknown address give the same message.

Company sign-in

If your email domain belongs to a workspace that requires its own identity provider, email sign-in does not apply. Fermium sends you to the company sign-in instead when you create an account or sign in. See SSO and SCIM.

Limits

Registration, sign-in, reset and passkey requests are rate limited per address and per IP address. If you hit a limit, wait and try again.