diff --git a/escheduler-alert/src/main/java/cn/escheduler/alert/utils/Constants.java b/escheduler-alert/src/main/java/cn/escheduler/alert/utils/Constants.java
index 1f036af54b..07d1866a5d 100644
--- a/escheduler-alert/src/main/java/cn/escheduler/alert/utils/Constants.java
+++ b/escheduler-alert/src/main/java/cn/escheduler/alert/utils/Constants.java
@@ -57,6 +57,8 @@ public class Constants {
 
     public static final String MAIL_TRANSPORT_PROTOCOL = "mail.transport.protocol";
 
+    public static final String MAIL_SMTP_STARTTLS_ENABLE = "mail.smtp.starttls.enable";
+
     public static final String TEXT_HTML_CHARSET_UTF_8 = "text/html;charset=utf-8";
 
     public static final String STRING_TRUE = "true";
diff --git a/escheduler-alert/src/main/java/cn/escheduler/alert/utils/MailUtils.java b/escheduler-alert/src/main/java/cn/escheduler/alert/utils/MailUtils.java
index 7746465e62..42fbebd2f2 100644
--- a/escheduler-alert/src/main/java/cn/escheduler/alert/utils/MailUtils.java
+++ b/escheduler-alert/src/main/java/cn/escheduler/alert/utils/MailUtils.java
@@ -117,6 +117,8 @@ public class MailUtils {
                 email.setSmtpPort(mailServerPort);
                 //set charset
                 email.setCharset(Constants.UTF_8);
+                // TLS verification
+                email.setTLS(true);
                 if (CollectionUtils.isNotEmpty(receivers)){
                     // receivers mail
                     for (String receiver : receivers) {
@@ -267,6 +269,7 @@ public class MailUtils {
         props.setProperty(Constants.MAIL_HOST, mailServerHost);
         props.setProperty(Constants.MAIL_SMTP_AUTH, Constants.STRING_TRUE);
         props.setProperty(Constants.MAIL_TRANSPORT_PROTOCOL, mailProtocol);
+        props.setProperty(Constants.MAIL_SMTP_STARTTLS_ENABLE, Constants.STRING_TRUE);
         Authenticator auth = new Authenticator() {
             @Override
             protected PasswordAuthentication getPasswordAuthentication() {
diff --git a/escheduler-common/pom.xml b/escheduler-common/pom.xml
index 9cbc80b83f..e06b344c4f 100644
--- a/escheduler-common/pom.xml
+++ b/escheduler-common/pom.xml
@@ -148,6 +148,10 @@
 					<groupId>javax.servlet.jsp</groupId>
 					<artifactId>jsp-api</artifactId>
 				</exclusion>
+				<exclusion>
+					<groupId>com.google.protobuf</groupId>
+					<artifactId>protobuf-java</artifactId>
+				</exclusion>
 
 			</exclusions>
 		</dependency>
@@ -340,6 +344,14 @@
 					<artifactId>log4j-slf4j-impl</artifactId>
 					<groupId>org.apache.logging.log4j</groupId>
 				</exclusion>
+				<exclusion>
+					<artifactId>javax.servlet</artifactId>
+					<groupId>org.eclipse.jetty.orbit</groupId>
+				</exclusion>
+				<exclusion>
+					<artifactId>servlet-api-2.5</artifactId>
+					<groupId>org.mortbay.jetty</groupId>
+				</exclusion>
 			</exclusions>
 		</dependency>
 
diff --git a/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java b/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java
index 50402d4a3b..6a28e1bbdf 100644
--- a/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java
+++ b/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java
@@ -170,7 +170,7 @@ public class FetchTaskThread implements Runnable{
 
                             // check and create Linux users
                             FileUtils.createWorkDirAndUserIfAbsent(execLocalPath,
-                                    processDefine.getUserName(), logger);
+                                    processInstance.getTenantCode(), logger);
 
 
                             // submit task