diff --git a/MailSend.Web/Controllers/MailController.cs b/MailSend.Web/Controllers/MailController.cs
index e9dbaea..1a0a8e6 100644
--- a/MailSend.Web/Controllers/MailController.cs
+++ b/MailSend.Web/Controllers/MailController.cs
@@ -102,7 +102,7 @@ namespace MailSend.Web.Controllers
                 mailSend.ShowName = item.ShowName;
 
                 //附件处理
-                if (item.Attaches.Count > 0)
+                if (item.Attaches != null && item.Attaches.Count > 0)
                 {
                     var list = new List<AttachFileModel>();
                     foreach (var att in item.Attaches)