diff --git a/controllers/service.go b/controllers/service.go
index d648621d..6d3e9648 100644
--- a/controllers/service.go
+++ b/controllers/service.go
@@ -30,6 +30,7 @@ type EmailForm struct {
 	Content   string   `json:"content"`
 	Sender    string   `json:"sender"`
 	Receivers []string `json:"receivers"`
+	Provider  string   `json:"provider"`
 }
 
 type SmsForm struct {
@@ -48,11 +49,6 @@ type SmsForm struct {
 // @Success 200 {object}  Response object
 // @router /api/send-email [post]
 func (c *ApiController) SendEmail() {
-	provider, _, ok := c.GetProviderFromContext("Email")
-	if !ok {
-		return
-	}
-
 	var emailForm EmailForm
 
 	err := json.Unmarshal(c.Ctx.Input.RequestBody, &emailForm)
@@ -61,6 +57,29 @@ func (c *ApiController) SendEmail() {
 		return
 	}
 
+	var provider *object.Provider
+	if emailForm.Provider != "" {
+		// called by frontend's TestEmailWidget, provider name is set by frontend
+		provider = object.GetProvider(fmt.Sprintf("admin/%s", emailForm.Provider))
+	} else {
+		// called by Casdoor SDK via Client ID & Client Secret, so the used Email provider will be the application' Email provider or the default Email provider
+		var ok bool
+		provider, _, ok = c.GetProviderFromContext("Email")
+		if !ok {
+			return
+		}
+	}
+
+	// when receiver is the reserved keyword: "TestSmtpServer", it means to test the SMTP server instead of sending a real Email
+	if len(emailForm.Receivers) == 1 && emailForm.Receivers[0] == "TestSmtpServer" {
+		err := object.DailSmtpServer(provider)
+		if err != nil {
+			c.ResponseError(err.Error())
+			return
+		}
+		c.ResponseOk()
+	}
+
 	if util.IsStrsEmpty(emailForm.Title, emailForm.Content, emailForm.Sender) {
 		c.ResponseError(fmt.Sprintf("Empty parameters for emailForm: %v", emailForm))
 		return
diff --git a/object/email.go b/object/email.go
index 6bb12983..25898d9c 100644
--- a/object/email.go
+++ b/object/email.go
@@ -29,3 +29,16 @@ func SendEmail(provider *Provider, title string, content string, dest string, se
 
 	return dialer.DialAndSend(message)
 }
+
+// DailSmtpServer Dail Smtp server
+func DailSmtpServer(provider *Provider) error {
+	dialer := gomail.NewDialer(provider.Host, provider.Port, provider.ClientId, provider.ClientSecret)
+
+	sender, err := dialer.Dial()
+	if err != nil {
+		return err
+	}
+	defer sender.Close()
+
+	return nil
+}
diff --git a/web/src/ProviderEditPage.js b/web/src/ProviderEditPage.js
index a12a72b2..1ccec895 100644
--- a/web/src/ProviderEditPage.js
+++ b/web/src/ProviderEditPage.js
@@ -19,6 +19,7 @@ import * as ProviderBackend from "./backend/ProviderBackend";
 import * as Setting from "./Setting";
 import i18next from "i18next";
 import { authConfig } from "./auth/Auth";
+import * as ProviderEditTestEmail from "./TestEmailWidget";
 import copy from 'copy-to-clipboard';
 import { CaptchaPreview } from "./common/CaptchaPreview";
 
@@ -33,6 +34,7 @@ class ProviderEditPage extends React.Component {
       providerName: props.match.params.providerName,
       provider: null,
       mode: props.location.mode !== undefined ? props.location.mode : "edit",
+      testEmail: this.props.account["email"] !== undefined ? this.props.account["email"] : "",
     };
   }
 
@@ -257,7 +259,7 @@ class ProviderEditPage extends React.Component {
                 </Col>
               </Row>
               {
-                this.state.provider.type !== "WeCom"  ? null : (    
+                this.state.provider.type !== "WeCom"  ? null : (
                   <Row style={{marginTop: '20px'}} >
                     <Col style={{marginTop: '5px'}} span={2}>
                       {Setting.getLabel(i18next.t("provider:Method"), i18next.t("provider:Method - Tooltip"))} :
@@ -514,6 +516,27 @@ class ProviderEditPage extends React.Component {
                   }} />
                 </Col>
               </Row>
+              <Row style={{marginTop: '20px'}} >
+                <Col style={{marginTop: '5px'}} span={(Setting.isMobile()) ? 22 : 2}>
+                  {Setting.getLabel(i18next.t("provider:Test Email"), i18next.t("provider:Test Email - Tooltip"))} :
+                </Col>
+                <Col span={4} >
+                  <Input value={this.state.testEmail}
+                         placeHolder = {i18next.t("user:Input your email")}
+                         onChange={e => {
+                    this.setState({testEmail: e.target.value})
+                  }} />
+                </Col>
+                <Button style={{marginLeft: '10px', marginBottom: "5px"}} type="primary"
+                        onClick={() => ProviderEditTestEmail.connectSmtpServer(this.state.provider)} >
+                  {i18next.t("provider:Test Connection")}
+                </Button>
+                <Button style={{marginLeft: '10px', marginBottom: "5px"}} type="primary"
+                        disabled={!Setting.isValidEmail(this.state.testEmail)}
+                        onClick={() => ProviderEditTestEmail.sendTestEmail(this.state.provider, this.state.testEmail)} >
+                  {i18next.t("provider:Send Test Email")}
+                </Button>
+              </Row>
             </React.Fragment>
           ) : this.state.provider.category === "SMS" ? (
             <React.Fragment>
diff --git a/web/src/TestEmailWidget.js b/web/src/TestEmailWidget.js
new file mode 100644
index 00000000..3695a2a4
--- /dev/null
+++ b/web/src/TestEmailWidget.js
@@ -0,0 +1,59 @@
+// Copyright 2021 The Casdoor Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import * as Setting from "./Setting";
+
+export function sendTestEmail(provider, email) {
+  testEmailProvider(provider, email)
+    .then((res) => {
+      if (res.msg === "") {
+        Setting.showMessage("success", `Successfully send email`);
+      } else {
+        Setting.showMessage("error", res.msg);
+      }
+    })
+    .catch(error => {
+      Setting.showMessage("error", `Failed to connect to server: ${error}`);
+    });
+}
+
+export function connectSmtpServer(provider) {
+  testEmailProvider(provider)
+    .then((res) => {
+      if (res.msg === "") {
+        Setting.showMessage("success", `Successfully connecting smtp server`);
+      } else {
+        Setting.showMessage("error", res.msg);
+      }
+    })
+    .catch(error => {
+      Setting.showMessage("error", `Failed to connect to server: ${error}`);
+    });
+}
+
+function testEmailProvider(provider, email = "") {
+  let emailForm = {
+    title: provider.title,
+    content: provider.content,
+    sender: provider.displayName,
+    receivers: email === "" ? ["TestSmtpServer"] : [email],
+    provider: provider.name,
+  }
+
+  return fetch(`${Setting.ServerUrl}/api/send-email`, {
+    method: "POST",
+    credentials: "include",
+    body: JSON.stringify(emailForm)
+  }).then(res => res.json());
+}
\ No newline at end of file
diff --git a/web/src/locales/de/data.json b/web/src/locales/de/data.json
index 3cd34d30..2f9e6e51 100644
--- a/web/src/locales/de/data.json
+++ b/web/src/locales/de/data.json
@@ -407,7 +407,7 @@
     "Domain": "Domäne",
     "Domain - Tooltip": "Storage endpoint custom domain",
     "Edit Provider": "Anbieter bearbeiten",
-    "Email Content": "Email Content",
+    "Email Content": "Email content",
     "Email Content - Tooltip": "Unique string-style identifier",
     "Email Title": "E-Mail-Titel",
     "Email Title - Tooltip": "Unique string-style identifier",
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "Secret key - Tooltip",
     "SecretAccessKey - Tooltip": "SecretAccessKey - Tooltip",
+    "Send Test Email": "Send Test Email",
     "Sign Name": "Schild Name",
     "Sign Name - Tooltip": "Unique string-style identifier",
     "Sign request": "Signaturanfrage",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "Unique string-style identifier",
     "Terms of Use": "Nutzungsbedingungen",
     "Terms of Use - Tooltip": "Nutzungsbedingungen - Tooltip",
+    "Test Connection": "Test Smtp Connection",
+    "Test Email": "Test email config",
+    "Test Email - Tooltip": "Email Address",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - Tooltip",
     "Type": "Typ",
diff --git a/web/src/locales/en/data.json b/web/src/locales/en/data.json
index d2cad7ee..9ab5e8f6 100644
--- a/web/src/locales/en/data.json
+++ b/web/src/locales/en/data.json
@@ -407,9 +407,9 @@
     "Domain": "Domain",
     "Domain - Tooltip": "Domain - Tooltip",
     "Edit Provider": "Edit Provider",
-    "Email Content": "Email Content",
+    "Email Content": "Email content",
     "Email Content - Tooltip": "Email Content - Tooltip",
-    "Email Title": "Email Title",
+    "Email Title": "Email title",
     "Email Title - Tooltip": "Email Title - Tooltip",
     "Endpoint": "Endpoint",
     "Endpoint (Intranet)": "Endpoint (Intranet)",
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "Secret key - Tooltip",
     "SecretAccessKey - Tooltip": "SecretAccessKey - Tooltip",
+    "Send Test Email": "Send Test Email",
     "Sign Name": "Sign Name",
     "Sign Name - Tooltip": "Sign Name - Tooltip",
     "Sign request": "Sign request",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "Template Code - Tooltip",
     "Terms of Use": "Terms of Use",
     "Terms of Use - Tooltip": "Terms of Use - Tooltip",
+    "Test Connection": "Test Smtp Connection",
+    "Test Email": "Test email config",
+    "Test Email - Tooltip": "Email Address",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - Tooltip",
     "Type": "Type",
diff --git a/web/src/locales/fr/data.json b/web/src/locales/fr/data.json
index a8235fee..58c4ce28 100644
--- a/web/src/locales/fr/data.json
+++ b/web/src/locales/fr/data.json
@@ -407,7 +407,7 @@
     "Domain": "Domaine",
     "Domain - Tooltip": "Storage endpoint custom domain",
     "Edit Provider": "Modifier le fournisseur",
-    "Email Content": "Email Content",
+    "Email Content": "Email content",
     "Email Content - Tooltip": "Unique string-style identifier",
     "Email Title": "Titre de l'e-mail",
     "Email Title - Tooltip": "Unique string-style identifier",
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "Secret key - Tooltip",
     "SecretAccessKey - Tooltip": "SecretAccessKey - Infobulle",
+    "Send Test Email": "Send Test Email",
     "Sign Name": "Nom du panneau",
     "Sign Name - Tooltip": "Unique string-style identifier",
     "Sign request": "Demande de signature",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "Unique string-style identifier",
     "Terms of Use": "Conditions d'utilisation",
     "Terms of Use - Tooltip": "Conditions d'utilisation - Info-bulle",
+    "Test Connection": "Test Smtp Connection",
+    "Test Email": "Test email config",
+    "Test Email - Tooltip": "Email Address",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - Tooltip",
     "Type": "Type de texte",
diff --git a/web/src/locales/ja/data.json b/web/src/locales/ja/data.json
index 12ca38ae..2be12d9e 100644
--- a/web/src/locales/ja/data.json
+++ b/web/src/locales/ja/data.json
@@ -407,7 +407,7 @@
     "Domain": "ドメイン",
     "Domain - Tooltip": "Storage endpoint custom domain",
     "Edit Provider": "プロバイダーを編集",
-    "Email Content": "Email Content",
+    "Email Content": "Email content",
     "Email Content - Tooltip": "Unique string-style identifier",
     "Email Title": "メールタイトル",
     "Email Title - Tooltip": "Unique string-style identifier",
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "Secret key - Tooltip",
     "SecretAccessKey - Tooltip": "シークレットアクセスキー - ツールチップ",
+    "Send Test Email": "Send Test Email",
     "Sign Name": "署名名",
     "Sign Name - Tooltip": "Unique string-style identifier",
     "Sign request": "サインリクエスト",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "Unique string-style identifier",
     "Terms of Use": "利用規約",
     "Terms of Use - Tooltip": "利用規約 - ツールチップ",
+    "Test Connection": "Test Smtp Connection",
+    "Test Email": "Test email config",
+    "Test Email - Tooltip": "Email Address",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - Tooltip",
     "Type": "タイプ",
diff --git a/web/src/locales/ko/data.json b/web/src/locales/ko/data.json
index 78a6813a..a575f346 100644
--- a/web/src/locales/ko/data.json
+++ b/web/src/locales/ko/data.json
@@ -407,9 +407,9 @@
     "Domain": "Domain",
     "Domain - Tooltip": "Storage endpoint custom domain",
     "Edit Provider": "Edit Provider",
-    "Email Content": "Email Content",
+    "Email Content": "Email content",
     "Email Content - Tooltip": "Unique string-style identifier",
-    "Email Title": "Email Title",
+    "Email Title": "Email title",
     "Email Title - Tooltip": "Unique string-style identifier",
     "Endpoint": "Endpoint",
     "Endpoint (Intranet)": "Endpoint (Intranet)",
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "Secret key - Tooltip",
     "SecretAccessKey - Tooltip": "SecretAccessKey - Tooltip",
+    "Send Test Email": "Send Test Email",
     "Sign Name": "Sign Name",
     "Sign Name - Tooltip": "Unique string-style identifier",
     "Sign request": "Sign request",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "Unique string-style identifier",
     "Terms of Use": "Terms of Use",
     "Terms of Use - Tooltip": "Terms of Use - Tooltip",
+    "Test Connection": "Test Smtp Connection",
+    "Test Email": "Test email config",
+    "Test Email - Tooltip": "Email Address",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - Tooltip",
     "Type": "Type",
diff --git a/web/src/locales/ru/data.json b/web/src/locales/ru/data.json
index ce9e8e01..5055463d 100644
--- a/web/src/locales/ru/data.json
+++ b/web/src/locales/ru/data.json
@@ -407,7 +407,7 @@
     "Domain": "Домен",
     "Domain - Tooltip": "Storage endpoint custom domain",
     "Edit Provider": "Изменить провайдера",
-    "Email Content": "Email Content",
+    "Email Content": "Email content",
     "Email Content - Tooltip": "Unique string-style identifier",
     "Email Title": "Заголовок письма",
     "Email Title - Tooltip": "Unique string-style identifier",
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "Secret key - Tooltip",
     "SecretAccessKey - Tooltip": "SecretAccessKey - Подсказка",
+    "Send Test Email": "Send Test Email",
     "Sign Name": "Имя подписи",
     "Sign Name - Tooltip": "Unique string-style identifier",
     "Sign request": "Запрос на подпись",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "Unique string-style identifier",
     "Terms of Use": "Условия использования",
     "Terms of Use - Tooltip": "Условия использования - Tooltip",
+    "Test Connection": "Test Smtp Connection",
+    "Test Email": "Test email config",
+    "Test Email - Tooltip": "Email Address",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - Tooltip",
     "Type": "Тип",
diff --git a/web/src/locales/zh/data.json b/web/src/locales/zh/data.json
index 3002b8b7..9afd7a90 100644
--- a/web/src/locales/zh/data.json
+++ b/web/src/locales/zh/data.json
@@ -448,6 +448,7 @@
     "Secret key": "Secret key",
     "Secret key - Tooltip": "用于服务端调用验证码提供商API进行验证",
     "SecretAccessKey - Tooltip": "访问密钥-工具提示",
+    "Send Test Email": "发送测试邮件",
     "Sign Name": "签名名称",
     "Sign Name - Tooltip": "签名名称",
     "Sign request": "签名请求",
@@ -466,6 +467,9 @@
     "Template Code - Tooltip": "模板代码",
     "Terms of Use": "使用条款",
     "Terms of Use - Tooltip": "使用条款 - 工具提示",
+    "Test Connection": "测试Smtp连接",
+    "Test Email": "测试Email配置",
+    "Test Email - Tooltip": "邮箱地址",
     "Token URL": "Token URL",
     "Token URL - Tooltip": "Token URL - 工具提示",
     "Type": "类型",