diff --git a/src/routes/mailserver.js b/src/routes/mailserver.js
index a70993e9f..d2e126ce4 100644
--- a/src/routes/mailserver.js
+++ b/src/routes/mailserver.js
@@ -41,8 +41,7 @@ async function proxy(req, res, next) {
     parsedUrl.query['access_token'] = addonDetails.token;
     req.url = url.format({ pathname: pathname, query: parsedUrl.query });
 
-    const proxyOptions = url.parse(`https://${addonDetails.ip}:3000`);
-    proxyOptions.rejectUnauthorized = false;
+    const proxyOptions = url.parse(`http://${addonDetails.ip}:3000`);
     const mailserverProxy = middleware.proxy(proxyOptions);
 
     req.clearTimeout(); // TODO: add timeout to mail server proxy logic instead of this
@@ -73,4 +72,4 @@ async function setLocation(req, res, next) {
     if (error) return next(BoxError.toHttpError(error));
 
     next(new HttpSuccess(202, { taskId }));
-}
\ No newline at end of file
+}