_.chain(['#mailaddr_0', '#mailaddr_1', '#mailaddr_2']).map(function(id){
            var v = $(self).find(id).val();
            if(v.length > 0){
              return [true, /^[^@]+@[a-z0-9A-Z][a-z0-9A-Z\.\-]+$/.test(v)];
            }else{