diff --git a/src/main/java/au/com/royalpay/payment/manage/notice/core/impls/MailServiceImp.java b/src/main/java/au/com/royalpay/payment/manage/notice/core/impls/MailServiceImp.java
index a44a49cab..4de3517a4 100644
--- a/src/main/java/au/com/royalpay/payment/manage/notice/core/impls/MailServiceImp.java
+++ b/src/main/java/au/com/royalpay/payment/manage/notice/core/impls/MailServiceImp.java
@@ -248,7 +248,9 @@ public class MailServiceImp implements MailService {
         Key aesKey = AESCrypt.fromKeyString(Base64.decodeBase64(settleAESKey));
         String mailPwd = new String(AESCrypt.decrypt(Base64.decodeBase64(mailPwdEncrypted), aesKey), StandardCharsets.UTF_8);
         noticeBean.setPassword(mailPwd);
-        noticeBean.setAttachFiles(attachFiles);
+        if(attachFiles!=null){
+            noticeBean.setAttachFiles(attachFiles);
+        }
         String postUrl = mailHost + "/mail/single?" + generateMailSignParam();
         HttpRequestResult result = null;
         try {