I send mail

MarlonFH

When I send email with attachments, it is sent 2 times, why?

´´´
function beforeRender(req, res, done) {

req.options = req.options || {}
req.options.preview = false

require('request')({ 
  url:"http:", 
  json:true 
}, function(err, response, body){
    console.log(JSON.stringify(body))
   
   req.data = Object.assign({}, req.data, { terpel: body })
   done();
});
return;

}

function afterRender(req, res, done) {
if (req.options && req.options.preview) {
return done()
}
var mailer = require("nodemailer");

var smtpTransport = mailer.createTransport(
'smtps://example%40hotmail.com:Sistemas@hotmail.com'
);

var mail = {
    from: "Marlon<example@hotmail.com>",

,
    to: "example@hotmail.com",
    subject: "Formato ",
    text: "Formato " ,
    html: "Buenos días,",
    attachments: [
    {  
        filename: "Formato".xlsx",
        content: new Buffer(res.content)
    }],

}

smtpTransport.sendMail(mail, function(error, response){
    smtpTransport.close();
    if(error){
        return done(error);
    }
    return done();
});

}
´´´