Fixes #1649 (#1650)

* Regression test #1649

* Address comments

* Comment

* Change emails to help debug flaky test failures

* More logging info to debug flaky tests

src/Routers/UsersRouter.js

@@ -1,7 +1,7 @@
 // These methods handle the User-related routes.
 
 import deepcopy       from 'deepcopy';
-
+import Config         from '../Config';
 import ClassesRouter  from './ClassesRouter';
 import PromiseRouter  from '../PromiseRouter';
 import rest           from '../rest';
@@ -156,19 +156,36 @@ export class UsersRouter extends ClassesRouter {
   }
 
   handleResetRequest(req) {
-     let { email } = req.body;
-     if (!email) {
-       throw new Parse.Error(Parse.Error.EMAIL_MISSING, "you must provide an email");
-     }
-     let userController = req.config.userController;
-
-     return userController.sendPasswordResetEmail(email).then((token) => {
-        return Promise.resolve({
-          response: {}
-        });
-     }, (err) => {
-       throw new Parse.Error(Parse.Error.EMAIL_NOT_FOUND, `no user found with email ${email}`);
-     });
+    try {
+      Config.validateEmailConfiguration({
+        verifyUserEmails: true, //A bit of a hack, as this isn't the intended purpose of this parameter
+        appName: req.config.appName,
+        publicServerURL: req.config.publicServerURL,
+      });
+    } catch (e) {
+      if (typeof e === 'string') {
+        // Maybe we need a Bad Configuration error, but the SDKs won't understand it. For now, Internal Server Error.
+        throw new Parse.Error(Parse.Error.INTERNAL_SERVER_ERROR, 'An appName, publicServerURL, and emailAdapter are required for password reset functionality.');
+      } else {
+        throw e;
+      }
+    }
+    let { email } = req.body;
+    if (!email) {
+      throw new Parse.Error(Parse.Error.EMAIL_MISSING, "you must provide an email");
+    }
+    let userController = req.config.userController;
+    return userController.sendPasswordResetEmail(email).then(token => {
+       return Promise.resolve({
+         response: {}
+       });
+    }, err => {
+      if (err.code === Parse.Error.OBJECT_NOT_FOUND) {
+        throw new Parse.Error(Parse.Error.EMAIL_NOT_FOUND, `No user found with email ${email}.`);
+      } else {
+        throw err;
+      }
+    });
   }