Google Sign-In: Users must connect their Google accounts to log in.
SAML SSO: Users must authenticate through your identity provider. Access will be restricted otherwise.
Based on your settings, the invite sign-up page will automatically adjust to display only the allowed sign-in method.
Restrict Email Domains
Admins can further control access by restricting sign-ins to specific email domains. Once configured, only users with the approved domain(s) can join and log in to Spike.