diff --git a/index.js b/index.js
index 7b8f09f..4b364d9 100644
--- a/index.js
+++ b/index.js
@@ -17,6 +17,16 @@ const mailer = require('nodemailer').createTransport({
 	},
 })
 
+// Test mailer
+app.get('/', async (req, res) => {
+	try {
+		await mailer.verify()
+		return res.sendStatus(200)
+	} catch (err) {
+		return res.status(500).send(err)
+	}
+})
+
 app.use(express.json()).use(cors())
 	.options('/').post('/', async (req, res) => {