TExternalLoginOptions.AllowAutoLinkByEmail Property
Allows the built-in policy to link an external identity to an existing local user matched by e-mail address, when no explicit link exists yet.
Remarks
When True and an existing user is found by the upstream e-mail, the link is created so subsequent sign-ins resolve directly by provider/subject. Defaults to False. Combine with RequireVerifiedEmailForAutoLink to mitigate account-takeover risk.
Syntax
Unit: Sphinx.Options
property TExternalLoginOptions.AllowAutoLinkByEmail: Boolean