Currently, sending email verification is done through the client-side sdk. There is no method (to my knowledge) for sending email verification via the Admin SDK in a server environment.

The only workaround seems to be the "generateEmailVerificationLink" function but that requires the use of a custom email service. This is different from the client-sdk functionality.

The use case is SSR focused apps where user creation is also done via the Admin SDK and/or where support for no-js availability is a requirement.