More flexible email sending

Will attempt to use SMTP if possible, but will fallback to gmail if
needed

Author: chipbell4

app/helpers/sendmail.js

@@ -1,13 +1,28 @@
 const nodemailer = require('nodemailer');
 
-module.exports = function(mailOptions, callback)
-{
-	const transporter = nodemailer.createTransport({
-		service: 'Gmail',
-		auth: {
-			user: process.env.GMAIL_USER,
-			pass: process.env.GMAIL_PASSWORD
-		}
-	});
-	transporter.sendMail(mailOptions, callback);
+module.exports = function(mailOptions, callback) {
+  let transportConfig;
+
+  const canSendSmtp = process.env.SMTP_USER !== undefined && process.env.SMTP_PASSWORD !== undefined && process.env.SMTP_HOST !== undefined;
+  if (canSendSmtp) {
+    transportConfig = {
+      host: process.env.SMTP_HOST,
+      secure: true,
+      auth: {
+        user: process.env.SMTP_USER,
+        pass: process.env.SMTP_PASSWORD
+      }
+    };
+  } else {
+    transportConfig = {
+      service: 'Gmail',
+      auth: {
+        user: process.env.GMAIL_USER,
+        pass: process.env.GMAIL_PASSWORD
+      }
+    };
+  }
+
+  const transporter = nodemailer.createTransport(transportConfig);
+  transporter.sendMail(mailOptions, callback);
 };