<form-bean name="captacaoEmailsForm"
    type="org.apache.struts.action.DynaActionForm">
    <form-property name="dsEmail" type="java.lang.String" />
</form-bean>

public ActionForward executeAction(ActionMapping map, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

        DynaValidatorForm captacaoEmailsForm = (DynaValidatorForm) form;
        CaptacaoTO captaTO = new CaptacaoTO();
        Context ctx = new ContextBase();
        captaTO.setDsEmail(captacaoEmailsForm.getString("dsEmail").trim());

        ctx.put(captaTO.CAPTACAO_KEY, captaTO);
        ctx = RaiaDelegateCommand.getInstance().execute(ctx,
                RaiaConstantesChain.INCLUIR_CAPTA_EMAIL);
        return map.findForward(RaiaConstantesEcomm.FORWARD_SUCESSO);
    }