# Setup of Email OTP
With the Signicat Email OTP service, you can perform email-based user authentication.
Integration with Email OTP is done similarly to other Signicat's eID methods. This page describes how to set up Email OTP on the Signicat Dashboard (opens new window)
For more general information on how to integrate with Signicat, see the Authentication quick start guide.
# Initial preparations
This setup guide assumes you have completed the following initial preparations:
- Sign up to the Signicat Dashboard (opens new window).
- In the Signicat Dashboard, set up an organisation, an account and a domain.
We recommend you to create a Sandbox account to test our services before implementing them in production.
# Add Email OTP
To use an ID method, you first need to activate it. In the Signicat Dashboard:
- Go to Authentication > ID Methods (opens new window).
- Select Add new.
- Choose Email OTP from the list and save.
Email OTP should now appear in the list of available ID methods with the status set to "Active".
# Customise email service settings
When using the Signicat Email OTP service to send OTP codes to end-users, the service inherits the email settings configured in the Signicat Communication service.
On the Communication > Email (opens new window), you can manage the email settings for your account. In particular, you can customise:
- The email sender name
- The email domain name (
- The email address prefix
By default, the email sender name is set to "Signicat" and the email domain, and address prefix, is set to
email@example.com. Alternatively, you can set up your custom SMTP server or use your own custom email domain.
Find out more about setting custom email settings in the Communication service documentation.
# Select protocol and configure ID method
To establish a connection between Signicat Email OTP service and your application, you need to use an authentication protocol, like OpenID Connect (OIDC) or SAML 2.0. We recommend using OIDC, since SAML 2.0 is much more complex to implement on your side and usually requires a federation agent already in place.
Alternatively, you can integrate with Signicat Authentication REST API. You can find more information on the different types in the Authentication protocols section.