Started some reducing of callback in different files

server/apps/mailtest.js

@@ -0,0 +1,39 @@
+var cluster = require("cluster"),
+  net = require("net"),
+  path = require("path"),
+  //publicPath = path.join(__dirname, 'public'),
+  http = require("http"),
+  port = 8080,
+  //farmhash = require('farmhash'),
+  uniqid = require("uniqid"),
+  num_processes = require("os").cpus().length;
+
+publicPath = path.join(__dirname, "public");
+pathThumbnails = __dirname;
+var nodemailer = require("nodemailer");
+var mailconfig = require(path.join(__dirname, "../config/mailconfig.js"));
+
+let transporter = nodemailer.createTransport(mailconfig);
+
+transporter.verify(function(error, success) {
+  if (error) {
+    return;
+  } else {
+    var message = "Testmail";
+    var msg = {
+      from: mailconfig.from,
+      to: mailconfig.notify_mail,
+      subject: "ZOFF: Requested new ",
+      text: message,
+      html: message
+    };
+    transporter.sendMail(msg, (error, info) => {
+      console.log(error);
+      if (error) {
+        transporter.close();
+        return;
+      }
+      transporter.close();
+    });
+  }
+});