diff --git a/backend/src/main/java/io/metersphere/service/SystemParameterService.java b/backend/src/main/java/io/metersphere/service/SystemParameterService.java
index 6f60b47dda..7ee18ac83a 100644
--- a/backend/src/main/java/io/metersphere/service/SystemParameterService.java
+++ b/backend/src/main/java/io/metersphere/service/SystemParameterService.java
@@ -40,17 +40,24 @@ public class SystemParameterService {
 
     public void editMail(List<SystemParameter> parameters) {
         List<SystemParameter> paramList = this.getParamList(ParamConstants.Classify.MAIL.getValue());
-        boolean empty = paramList.size() < 2;
+        boolean empty = paramList.size() <= 0;
+
         parameters.forEach(parameter -> {
+            SystemParameterExample example = new SystemParameterExample();
             if (parameter.getParamKey().equals(ParamConstants.MAIL.PASSWORD.getKey())) {
-                String string = EncryptUtils.aesEncrypt(parameter.getParamValue()).toString();
-                parameter.setParamValue(string);
+                if (!StringUtils.isBlank(parameter.getParamValue())) {
+                    String string = EncryptUtils.aesEncrypt(parameter.getParamValue()).toString();
+                    parameter.setParamValue(string);
+                }
             }
-            if (empty) {
-                systemParameterMapper.insert(parameter);
-            } else {
+            example.createCriteria().andParamKeyEqualTo(parameter.getParamKey());
+            if (systemParameterMapper.countByExample(example) > 0) {
                 systemParameterMapper.updateByPrimaryKey(parameter);
+            } else {
+                systemParameterMapper.insert(parameter);
             }
+            example.clear();
+
         });
     }
 
@@ -105,8 +112,11 @@ public class SystemParameterService {
             }
         } else {
             paramList.stream().filter(param -> param.getParamKey().equals(ParamConstants.MAIL.PASSWORD.getKey())).forEach(param -> {
-                String string = EncryptUtils.aesDecrypt(param.getParamValue()).toString();
-                param.setParamValue(string);
+                if (!StringUtils.isBlank(param.getParamValue())) {
+                    String string = EncryptUtils.aesDecrypt(param.getParamValue()).toString();
+                    param.setParamValue(string);
+                }
+
             });
         }
         paramList.sort(Comparator.comparingInt(SystemParameter::getSort));
diff --git a/frontend/src/business/components/settings/system/SystemParameterSetting.vue b/frontend/src/business/components/settings/system/SystemParameterSetting.vue
index 8c30d63387..2d9ade2b79 100644
--- a/frontend/src/business/components/settings/system/SystemParameterSetting.vue
+++ b/frontend/src/business/components/settings/system/SystemParameterSetting.vue
@@ -127,9 +127,15 @@
           this.$set(this.formInline, "port", response.data[1].paramValue);
           this.$set(this.formInline, "account", response.data[2].paramValue);
           this.$set(this.formInline, "password", response.data[3].paramValue);
-          this.$set(this.formInline, "SSL", JSON.parse(response.data[4].paramValue));
-          this.$set(this.formInline, "TLS", JSON.parse(response.data[5].paramValue));
-          this.$set(this.formInline, "SMTP", JSON.parse(response.data[6].paramValue));
+          if(response.data[4].paramValue!=""){
+            this.$set(this.formInline, "SSL", JSON.parse(response.data[4].paramValue));
+          }
+          if(response.data[5].paramValue!=""){
+            this.$set(this.formInline, "TLS", JSON.parse(response.data[5].paramValue));
+          }
+          if(response.data[6].paramValue!=""){
+            this.$set(this.formInline, "SMTP", JSON.parse(response.data[6].paramValue));
+          }
         })
       },
       change() {