protected EmailCommunicationResult sendEmail(final RequestContext requestContext,
                                                 final EmailMessageBodyBuilder body,
                                                 final Principal principal,
                                                 final List<String> recipients) {
        val emailRequest = prepareEmailMessageRequest(requestContext, body, principal, StringUtils.EMPTY).withTo(recipients);
        return communicationsManager.email(emailRequest);
    }
This is {@link CasSimpleMultifactorSendEmail}.

@author Misagh Moayyed
@since 7.0.0
support/cas-server-support-simple-mfa-core/src/main/java/org/apereo/cas/mfa/simple/web/flow/CasSimpleMultifactorSendEmail.java