diff --git a/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java b/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java
index 2f4cdcc..e0421f8 100644
--- a/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java
+++ b/modules/i3plus-core-apiservice/src/main/java/cn/estsh/i3plus/core/apiservice/util/MailUtil.java
@@ -12,6 +12,7 @@ import cn.estsh.impp.framework.boot.util.RedisCacheTool;
 import com.sun.mail.smtp.SMTPAddressFailedException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
 
 import javax.activation.DataHandler;
@@ -38,6 +39,12 @@ import java.util.Properties;
 public class MailUtil {
     public static final Logger LOGGER = LoggerFactory.getLogger(MailUtil.class);
 
+    /**
+     * 开启starttls , 不然有些邮箱会报认证失败的错误，如outlook
+     */
+    @Value("${mail.smtp.starttls.enable:false}")
+    private boolean smtpStarttlsEnabled;
+
     // 收件人
     private Address[] to = new Address[]{};
     private Address[] cc = new Address[]{};
@@ -55,9 +62,9 @@ public class MailUtil {
     private boolean isAuthenticationSMTP = false;
     private final List<BodyPart> attachmentList = new ArrayList<>();
 
-    private static final int MAIL_SMTP_TIMEOUT =10000;
-    private static final int MAIL_SMTP_CONNECTIONTIMEOUT =10000;
-    private static final int MAIL_SMTP_WRITETIMEOUT =10000;
+    private static final int MAIL_SMTP_TIMEOUT = 10000;
+    private static final int MAIL_SMTP_CONNECTIONTIMEOUT = 10000;
+    private static final int MAIL_SMTP_WRITETIMEOUT = 10000;
 
     /**
      * 初始化服务器邮箱参数
@@ -206,7 +213,8 @@ public class MailUtil {
 
     /**
      * 添加附件
-     * @param fileName 附件名
+     *
+     * @param fileName       附件名
      * @param attachmentByte
      * @throws MessagingException
      */
@@ -217,12 +225,13 @@ public class MailUtil {
 
     /**
      * 添加附件
-     * @param fileName 附件名
+     *
+     * @param fileName       附件名
      * @param attachmentByte
      * @param contentType
      * @throws MessagingException
      */
-    public void addAttachment(String fileName, byte[] attachmentByte,String contentType) throws MessagingException {
+    public void addAttachment(String fileName, byte[] attachmentByte, String contentType) throws MessagingException {
         BodyPart attachmentBodyPart = new MimeBodyPart();
         DataSource source = new ByteArrayDataSource(attachmentByte, contentType);
         attachmentBodyPart.setDataHandler(new DataHandler(source));
@@ -232,6 +241,7 @@ public class MailUtil {
 
     /**
      * 添加附件
+     *
      * @param attachment 附件对象
      * @throws MessagingException
      */
@@ -243,7 +253,7 @@ public class MailUtil {
         attachmentList.add(attachmentBodyPart);
     }
 
-    public void cleanAttachmentList(){
+    public void cleanAttachmentList() {
         attachmentList.clear();
     }
 
@@ -267,6 +277,9 @@ public class MailUtil {
             if (this.isAuthenticationSMTP) {
                 server.put("mail.smtp.auth", "true");
             }
+            if (smtpStarttlsEnabled) {
+                server.put("mail.smtp.starttls.enable", "true");
+            }
 
             Session conn = Session.getInstance(server, null);
 
@@ -323,7 +336,7 @@ public class MailUtil {
             LOGGER.info("邮件发送成功");
 
         } catch (SMTPAddressFailedException e) {
-            LOGGER.error("邮件发送异常",e);
+            LOGGER.error("邮件发送异常", e);
             throw ImppExceptionBuilder.newInstance()
                     .setSystemID(CommonEnumUtil.SOFT_TYPE.IMPP.getCode())
                     .setErrorCode(ImppExceptionEnum.MAIL_RECIPIENT_NOT_EXIST.getCode())
@@ -331,7 +344,7 @@ public class MailUtil {
                     .setErrorSolution("请重新设置收件人")
                     .build();
         } catch (AuthenticationFailedException e) {
-            LOGGER.error("邮件发送异常",e);
+            LOGGER.error("邮件发送异常", e);
             throw ImppExceptionBuilder.newInstance()
                     .setSystemID(CommonEnumUtil.SOFT_TYPE.IMPP.getCode())
                     .setErrorCode(ImppExceptionEnum.MAIL_LOGIN_PASS_ERROR.getCode())
@@ -339,7 +352,7 @@ public class MailUtil {
                     .setErrorSolution("请重新设置账号或密码")
                     .build();
         } catch (MessagingException e) {
-            LOGGER.error("邮件发送异常",e);
+            LOGGER.error("邮件发送异常", e);
             throw ImppExceptionBuilder.newInstance()
                     .setSystemID(CommonEnumUtil.SOFT_TYPE.IMPP.getCode())
                     .setErrorCode(ImppExceptionEnum.MAIL_SERVER_CONFIG_ERROR.getCode())
@@ -347,7 +360,7 @@ public class MailUtil {
                     .setErrorSolution("请重新设置邮件服务器地址或端口")
                     .build();
         } catch (UnsupportedEncodingException e) {
-            LOGGER.error("邮件发送异常",e);
+            LOGGER.error("邮件发送异常", e);
             throw ImppExceptionBuilder.newInstance()
                     .setSystemID(CommonEnumUtil.SOFT_TYPE.IMPP.getCode())
                     .setErrorCode(ImppExceptionEnum.MAIL_SERVER_CONFIG_ERROR.getCode())
@@ -355,7 +368,7 @@ public class MailUtil {
                     .setErrorSolution("请重新设置邮件服务器地址或端口")
                     .build();
         } catch (Exception e) {
-            LOGGER.error("邮件发送异常",e);
+            LOGGER.error("邮件发送异常", e);
             throw ImppExceptionBuilder.newInstance()
                     .setSystemID(CommonEnumUtil.SOFT_TYPE.IMPP.getCode())
                     .setErrorCode(ImppExceptionEnum.MAIL_SERVER_CONFIG_ERROR.getCode())