Email magic link

Outline supports authentication via email “magic link”. Using this method users will enter their email address on the login page and be sent a single-use, time-restricted link to their email address which they can click to sign-in without a password.

This is primarily intended for guests, however there are no additional restrictions on users that sign-in using this method and you could use this for all users if preferred.

Configuration

Email authentication is enabled by default if you have correctly setup an SMTP provider to send emails from the app.

You must also ensure the "Allow email authentication” is enabled under Settings → Security, it should look like the following: