diff --git a/account/tasks.py b/account/tasks.py
index 3e7c1d2f..12c1587d 100644
--- a/account/tasks.py
+++ b/account/tasks.py
@@ -1,33 +1,23 @@
 import logging
 
 from celery import shared_task
-from envelopes import Envelope
 
 from options.options import SysOptions
+from utils.shortcuts import send_email
 
 logger = logging.getLogger(__name__)
 
 
-def send_email(from_name, to_email, to_name, subject, content):
-    smtp = SysOptions.smtp_config
-    if not smtp:
-        return
-    envlope = Envelope(from_addr=(smtp["email"], from_name),
-                       to_addr=(to_email, to_name),
-                       subject=subject,
-                       html_body=content)
-    try:
-        envlope.send(smtp["server"],
-                     login=smtp["email"],
-                     password=smtp["password"],
-                     port=smtp["port"],
-                     tls=smtp["tls"])
-        return True
-    except Exception as e:
-        logger.exception(e)
-        return False
-
-
 @shared_task
 def send_email_async(from_name, to_email, to_name, subject, content):
-    send_email(from_name, to_email, to_name, subject, content)
+    if not SysOptions.smtp_config:
+        return
+    try:
+        send_email(smtp_config=SysOptions.smtp_config,
+                   from_name=from_name,
+                   to_email=to_email,
+                   to_name=to_name,
+                   subject=subject,
+                   content=content)
+    except Exception as e:
+        logger.exception(e)
diff --git a/conf/tests.py b/conf/tests.py
index c0b22f38..00cf8147 100644
--- a/conf/tests.py
+++ b/conf/tests.py
@@ -43,6 +43,14 @@ class SMTPConfigTest(APITestCase):
         resp = self.client.put(self.url, data=data)
         self.assertSuccess(resp)
 
+    @mock.patch("conf.views.send_email")
+    def test_test_smtp(self, mocked_send_email):
+        url = self.reverse("smtp_test_api")
+        self.test_create_smtp_config()
+        resp = self.client.post(url, data={"email": "test@test.com"})
+        self.assertSuccess(resp)
+        mocked_send_email.assert_called_once()
+
 
 class WebsiteConfigAPITest(APITestCase):
     def test_create_website_config(self):
diff --git a/conf/urls/admin.py b/conf/urls/admin.py
index 469ecc22..5b194b84 100644
--- a/conf/urls/admin.py
+++ b/conf/urls/admin.py
@@ -1,9 +1,10 @@
 from django.conf.urls import url
 
-from ..views import SMTPAPI, JudgeServerAPI, WebsiteConfigAPI, TestCasePruneAPI
+from ..views import SMTPAPI, JudgeServerAPI, WebsiteConfigAPI, TestCasePruneAPI, SMTPTestAPI
 
 urlpatterns = [
     url(r"^smtp/?$", SMTPAPI.as_view(), name="smtp_admin_api"),
+    url(r"^smtp_test/?$", SMTPTestAPI.as_view(), name="smtp_test_api"),
     url(r"^website/?$", WebsiteConfigAPI.as_view(), name="website_config_api"),
     url(r"^judge_server/?$", JudgeServerAPI.as_view(), name="judge_server_api"),
     url(r"^prune_test_case/?$", TestCasePruneAPI.as_view(), name="prune_test_case_api"),
diff --git a/conf/views.py b/conf/views.py
index 5fb22414..942c0225 100644
--- a/conf/views.py
+++ b/conf/views.py
@@ -12,6 +12,7 @@ from judge.dispatcher import process_pending_task
 from judge.languages import languages, spj_languages
 from options.options import SysOptions
 from utils.api import APIView, CSRFExemptAPIView, validate_serializer
+from utils.shortcuts import send_email
 from .models import JudgeServer
 from .serializers import (CreateEditWebsiteConfigSerializer,
                           CreateSMTPConfigSerializer, EditSMTPConfigSerializer,
@@ -51,7 +52,25 @@ class SMTPTestAPI(APIView):
     @super_admin_required
     @validate_serializer(TestSMTPConfigSerializer)
     def post(self, request):
-        return self.success({"result": True})
+        if not SysOptions.smtp_config:
+            return self.error("Please setup SMTP config at first")
+        try:
+            send_email(smtp_config=SysOptions.smtp_config,
+                       from_name=SysOptions.website_name_shortcut,
+                       to_name=request.user.username,
+                       to_email=request.data["email"],
+                       subject="You have successfully configured SMTP",
+                       content="You have successfully configured SMTP")
+        except Exception as e:
+            # guess error message encoding
+            msg = e.smtp_error
+            try:
+                # qq mail
+                msg = msg.decode("gbk")
+            except Exception:
+                msg = msg.decode("utf-8", "ignore")
+            return self.error(msg)
+        return self.success()
 
 
 class WebsiteConfigAPI(APIView):
diff --git a/utils/shortcuts.py b/utils/shortcuts.py
index 9340564e..111c31b8 100644
--- a/utils/shortcuts.py
+++ b/utils/shortcuts.py
@@ -5,6 +5,7 @@ from base64 import b64encode
 from io import BytesIO
 
 from django.utils.crypto import get_random_string
+from envelopes import Envelope
 
 
 def rand_str(length=32, type="lower_hex"):
@@ -63,3 +64,15 @@ def timestamp2utcstr(value):
 def natural_sort_key(s, _nsre=re.compile(r"(\d+)")):
     return [int(text) if text.isdigit() else text.lower()
             for text in re.split(_nsre, s)]
+
+
+def send_email(smtp_config, from_name, to_email, to_name, subject, content):
+    envelope = Envelope(from_addr=(smtp_config["email"], from_name),
+                        to_addr=(to_email, to_name),
+                        subject=subject,
+                        html_body=content)
+    return envelope.send(smtp_config["server"],
+                         login=smtp_config["email"],
+                         password=smtp_config["password"],
+                         port=smtp_config["port"],
+                         tls=smtp_config["tls"])