code fix and improvements

backend/helpers/email.js

@@ -1,4 +1,5 @@
 const nodemailer = require ('nodemailer');
+const emailConfig = require('../config/email');
 
 module.exports = {
   transformEmailFromAlexaResponse: function (email) {
@@ -43,23 +44,20 @@ module.exports = {
         name +
         '<br/><b>Email : </b>' +
         fromEmail +
-        '<br/><b>Your Saburly team</b>';
+        '<br/><br/><b>Your Saburly team</b>';
 
       let transporter = nodemailer.createTransport ({
-        host: 'smtp.mail.com',
-        port: 587,
-        secure: false,
-        auth: {
-          user: 'saburly@mail.com',
-          pass: 'KeepSaburly',
-        },
+        host: emailConfig.SMTP_HOST,
+        port: emailConfig.PORT,
+        secure: emailConfig.SECURE,
+        auth: emailConfig.AUTH,
       });
 
       var mailOptions = {
-        from: 'saburly@mail.com',
+        from: emailConfig.FROM_EMAIL,
         replyTo: fromEmail,
         to: toEmail,
-        subject: 'Message from Saburly service',
+        subject: emailConfig.SUBJECT,
         text: messageBody,
         html: messageBodyHTML,
       };