diff --git a/src/boxerror.js b/src/boxerror.js
index f6ede8906..badec91d2 100644
--- a/src/boxerror.js
+++ b/src/boxerror.js
@@ -84,6 +84,8 @@ BoxError.toHttpError = function (error) {
     case BoxError.EXTERNAL_ERROR:
     case BoxError.NETWORK_ERROR:
     case BoxError.FS_ERROR:
+    case BoxError.MAIL_ERROR:
+    case BoxError.DOCKER_ERROR:
         return new HttpError(424, error);
     case BoxError.DATABASE_ERROR:
     case BoxError.INTERNAL_ERROR: