diff --git a/src/NOCQ/NOCQ.csproj b/src/NOCQ/NOCQ.csproj
index 75b8f50..6206afc 100644
--- a/src/NOCQ/NOCQ.csproj
+++ b/src/NOCQ/NOCQ.csproj
@@ -59,12 +59,15 @@
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Extensability\Catalog.cs" />
-    <Compile Include="Plugins\Email\ImapInput.cs" />
+    <Compile Include="Plugins\Email\ImapInput.cs">
+      <DependentUpon>IEmailSetting.cs</DependentUpon>
+    </Compile>
     <Compile Include="Plugins\Email\EmailSettings.cs" />
     <Compile Include="Imports\IDataImportHook.cs" />
     <Compile Include="Imports\DataImports.cs" />
     <Compile Include="DB\RedisDataase.cs" />
     <Compile Include="Plugins\Email\ParseRule.cs" />
+    <Compile Include="Plugins\Email\IEmailSetting.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
diff --git a/src/NOCQ/Plugins/Email/EmailSettings.cs b/src/NOCQ/Plugins/Email/EmailSettings.cs
index 295d427..d5af464 100644
--- a/src/NOCQ/Plugins/Email/EmailSettings.cs
+++ b/src/NOCQ/Plugins/Email/EmailSettings.cs
@@ -3,7 +3,7 @@ using System.Collections.Generic;
 
 namespace NOCQ.Plugins.Email
 {
-	public class EmailSettings
+    public class EmailSettings :IEmailSetting
 	{
 		public string Username {get;set;}
 		public string Password {get;set;}
diff --git a/src/NOCQ/Plugins/Email/IEmailSetting.cs b/src/NOCQ/Plugins/Email/IEmailSetting.cs
new file mode 100644
index 0000000..018bdb7
--- /dev/null
+++ b/src/NOCQ/Plugins/Email/IEmailSetting.cs
@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+namespace NOCQ
+{
+	public interface IEmailSetting
+    {
+		 string Username {get;set;}
+		 string Password {get;set;}
+		 string Host {get;set;}
+		 int Port {get;set;}
+		 string Folder {get;set;}
+		 bool IsSsl {get;set;}
+		 int Frequency { get; set; }
+		 IEnumerable<ParseRule> ParseRules {get;set;}
+    }
+}
+