diff --git a/Infrastructure/OptionsSetting.cs b/Infrastructure/OptionsSetting.cs
index afd3dff..c6cf6f0 100644
--- a/Infrastructure/OptionsSetting.cs
+++ b/Infrastructure/OptionsSetting.cs
@@ -24,6 +24,7 @@ namespace Infrastructure
         public string Password { get; set; }
         public string Smtp { get; set; }
         public int Port { get; set; }
+        public string Signature { get; set; }
     }
     /// <summary>
     /// 上传
diff --git a/ZR.Admin.WebApi/appsettings.json b/ZR.Admin.WebApi/appsettings.json
index 3789b8b..33712f7 100644
--- a/ZR.Admin.WebApi/appsettings.json
+++ b/ZR.Admin.WebApi/appsettings.json
@@ -47,7 +47,8 @@
     "Password": "123456",
     //协议
     "Smtp": "smtp.qq.com",
-    "Port": 587
+    "Port": 587,
+    "Signature": "系统邮件，请勿回复！"
   },
   //redis服务配置
   "RedisServer": {
diff --git a/ZR.Common/MailHelper.cs b/ZR.Common/MailHelper.cs
index 3f52ce9..f3984be 100644
--- a/ZR.Common/MailHelper.cs
+++ b/ZR.Common/MailHelper.cs
@@ -27,10 +27,13 @@ namespace ZR.Common
         /// </summary>
         public int Port { get; set; } = 587;
         /// <summary>
+        /// 邮件签名
+        /// </summary>
+        public string Signature { get; set; }
+        /// <summary>
         /// 是否使用SSL协议
         /// </summary>
         public bool UseSsl { get; set; } = false;
-        public string mailSign = @"邮件来自C# 程序发送";
         private readonly MailOptions mailOptions = new();
 
         public MailHelper()
@@ -56,7 +59,7 @@ namespace ZR.Common
         }
 
         /// <summary>
-        /// 发送一个人
+        /// 发送一个
         /// </summary>
         /// <param name="toAddress"></param>
         /// <param name="subject"></param>
@@ -105,8 +108,8 @@ namespace ZR.Common
             //收件人
             message.To.AddRange(toAddress);
             message.Subject = subject;
-            //message.Date = DateTime.Now;
-
+            message.Date = DateTime.Now;
+            
             //创建附件Multipart
             Multipart multipart = new Multipart("mixed");
             var alternative = new MultipartAlternative();
@@ -120,14 +123,14 @@ namespace ZR.Common
                 alternative.Add(Html);
             }
             //文本内容
-            if (!string.IsNullOrEmpty(text))
+            //if (!string.IsNullOrEmpty(text))
+            //{
+            var plain = new TextPart(TextFormat.Plain)
             {
-                var plain = new TextPart(TextFormat.Plain)
-                {
-                    Text = text + "\r\n\n\n" + mailSign
-                };
-                alternative.Add(plain);
-            }
+                Text = text + "\r\n\n\n" + mailOptions.Signature
+            };
+            alternative.Add(plain);
+            //}
 
             //附件
             if (!string.IsNullOrEmpty(path))
diff --git a/ZR.Common/ZR.Common.csproj b/ZR.Common/ZR.Common.csproj
index f3df98d..be78c30 100644
--- a/ZR.Common/ZR.Common.csproj
+++ b/ZR.Common/ZR.Common.csproj
@@ -8,7 +8,7 @@
     <PackageReference Include="Aliyun.OSS.SDK.NetCore" Version="2.13.0" />
     <PackageReference Include="CSRedisCore" Version="3.8.2" />
     <PackageReference Include="EPPlus" Version="6.0.4" />
-    <PackageReference Include="MailKit" Version="3.2.0" />
+    <PackageReference Include="MailKit" Version="3.3.0" />
     <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="5.0.0" />
   </ItemGroup>