diff --git a/src/service/IRaCIS.Core.API/appsettings.CertificateApply.json b/src/service/IRaCIS.Core.API/appsettings.CertificateApply.json
index 4a38ab5..165c30c 100644
--- a/src/service/IRaCIS.Core.API/appsettings.CertificateApply.json
+++ b/src/service/IRaCIS.Core.API/appsettings.CertificateApply.json
@@ -26,7 +26,7 @@
     "Port": 465,
     "Host": "smtp.qiye.aliyun.com",
     "FromEmail": "test@extimaging.com",
-    "FromName": "Test_IRC",
+    "FromName": "MIRS",
     "AuthorizationCode": "SHzyyl2021"
   }
 
diff --git a/src/service/IRaCIS.Core.API/appsettings.Development.json b/src/service/IRaCIS.Core.API/appsettings.Development.json
index bfdc751..969ff21 100644
--- a/src/service/IRaCIS.Core.API/appsettings.Development.json
+++ b/src/service/IRaCIS.Core.API/appsettings.Development.json
@@ -27,7 +27,7 @@
     "Port": 465,
     "Host": "smtp.qiye.aliyun.com",
     "FromEmail": "test@extimaging.com",
-    "FromName": "Test_IRC",
+    "FromName": "MIRS",
     "AuthorizationCode": "SHzyyl2021"
   }
 
diff --git a/src/service/IRaCIS.Core.API/appsettings.PreProduction.json b/src/service/IRaCIS.Core.API/appsettings.PreProduction.json
index 8b4e272..a1c3927 100644
--- a/src/service/IRaCIS.Core.API/appsettings.PreProduction.json
+++ b/src/service/IRaCIS.Core.API/appsettings.PreProduction.json
@@ -31,7 +31,7 @@
     "Port": 465,
     "Host": "smtp.qiye.aliyun.com",
     "FromEmail": "IRC@extimaging.com",
-    "FromName": "IRC",
+    "FromName": "MIRS",
     "AuthorizationCode": "ExtImg@2022"
   }