功能添加

Entity/EmailMessage.cs

@@ -1,4 +1,6 @@
-namespace Entity;
+using System.Security.Cryptography;
+
+namespace Entity;
 
 /// <summary>
 /// 邮件消息实体
@@ -29,4 +31,14 @@ public class EmailMessage : BaseEntity
     /// 邮件接收时间
     /// </summary>
     public DateTime ReceivedDate { get; set; }
+
+    public string Md5 { get; set; } = string.Empty;
+
+    public string ComputeBodyHash()
+    {
+        using var md5 = MD5.Create();
+        var inputBytes = System.Text.Encoding.UTF8.GetBytes(Body + HtmlBody);
+        var hashBytes = md5.ComputeHash(inputBytes);
+        return Convert.ToHexString(hashBytes);
+    }
 }