diff --git a/App.xaml b/App.xaml
new file mode 100644
index 0000000..1e4b7ba
--- /dev/null
+++ b/App.xaml
@@ -0,0 +1,7 @@
+<Application
+    x:Class="MicaApps.Upw.Mail.App"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail">
+
+</Application>
diff --git a/App.xaml.cs b/App.xaml.cs
new file mode 100644
index 0000000..181d13b
--- /dev/null
+++ b/App.xaml.cs
@@ -0,0 +1,111 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using Windows.ApplicationModel;
+using Windows.ApplicationModel.Activation;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace MicaApps.Upw.Mail
+{
+    /// <summary>
+    /// 提供特定于应用程序的行为，以补充默认的应用程序类。
+    /// </summary>
+    sealed partial class App : Application
+    {
+        /// <summary>
+        /// 注入依赖
+        /// </summary>
+        public static IServiceProvider Services { get; private set; } = new ServiceCollection()
+            .AddSingleton<Services.LoginStatus>()
+            .BuildServiceProvider();
+
+
+
+        /// <summary>
+        /// 初始化单一实例应用程序对象。这是执行的创作代码的第一行，
+        /// 已执行，逻辑上等同于 main() 或 WinMain()。
+        /// </summary>
+        public App()
+        {
+            this.InitializeComponent();
+            this.Suspending += OnSuspending;
+        }
+
+
+        /// <summary>
+        /// 在应用程序由最终用户正常启动时进行调用。
+        /// 将在启动应用程序以打开特定文件等情况下使用。
+        /// </summary>
+        /// <param name="e">有关启动请求和过程的详细信息。</param>
+        protected override void OnLaunched(LaunchActivatedEventArgs e)
+        {
+            Frame rootFrame = Window.Current.Content as Frame;
+
+            // 不要在窗口已包含内容时重复应用程序初始化，
+            // 只需确保窗口处于活动状态
+            if (rootFrame == null)
+            {
+                // 创建要充当导航上下文的框架，并导航到第一页
+                rootFrame = new Frame();
+
+                rootFrame.NavigationFailed += OnNavigationFailed;
+
+                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
+                {
+                    //TODO: 从之前挂起的应用程序加载状态
+                }
+
+                // 将框架放在当前窗口中
+                Window.Current.Content = rootFrame;
+            }
+
+            if (e.PrelaunchActivated == false)
+            {
+                if (rootFrame.Content == null)
+                {
+                    // 当导航堆栈尚未还原时，导航到第一页，
+                    // 并通过将所需信息作为导航参数传入来配置
+                    // 参数
+                    rootFrame.Navigate(typeof(MainPage), e.Arguments);
+                }
+                // 确保当前窗口处于活动状态
+                Window.Current.Activate();
+            }
+        }
+
+        /// <summary>
+        /// 导航到特定页失败时调用
+        /// </summary>
+        ///<param name="sender">导航失败的框架</param>
+        ///<param name="e">有关导航失败的详细信息</param>
+        void OnNavigationFailed(object sender, NavigationFailedEventArgs e)
+        {
+            throw new Exception("Failed to load Page " + e.SourcePageType.FullName);
+        }
+
+        /// <summary>
+        /// 在将要挂起应用程序执行时调用。  在不知道应用程序
+        /// 无需知道应用程序会被终止还是会恢复，
+        /// 并让内存内容保持不变。
+        /// </summary>
+        /// <param name="sender">挂起的请求的源。</param>
+        /// <param name="e">有关挂起请求的详细信息。</param>
+        private void OnSuspending(object sender, SuspendingEventArgs e)
+        {
+            var deferral = e.SuspendingOperation.GetDeferral();
+            //TODO: 保存应用程序状态并停止任何后台活动
+            deferral.Complete();
+        }
+    }
+}
diff --git a/Assets/LockScreenLogo.scale-200.png b/Assets/LockScreenLogo.scale-200.png
new file mode 100644
index 0000000..735f57a
Binary files /dev/null and b/Assets/LockScreenLogo.scale-200.png differ
diff --git a/Assets/SplashScreen.scale-200.png b/Assets/SplashScreen.scale-200.png
new file mode 100644
index 0000000..023e7f1
Binary files /dev/null and b/Assets/SplashScreen.scale-200.png differ
diff --git a/Assets/Square150x150Logo.scale-200.png b/Assets/Square150x150Logo.scale-200.png
new file mode 100644
index 0000000..af49fec
Binary files /dev/null and b/Assets/Square150x150Logo.scale-200.png differ
diff --git a/Assets/Square44x44Logo.altform-lightunplated_targetsize-256.png b/Assets/Square44x44Logo.altform-lightunplated_targetsize-256.png
new file mode 100644
index 0000000..ddb5343
Binary files /dev/null and b/Assets/Square44x44Logo.altform-lightunplated_targetsize-256.png differ
diff --git a/Assets/Square44x44Logo.scale-200.png b/Assets/Square44x44Logo.scale-200.png
new file mode 100644
index 0000000..ce342a2
Binary files /dev/null and b/Assets/Square44x44Logo.scale-200.png differ
diff --git a/Assets/Square44x44Logo.targetsize-24_altform-unplated.png b/Assets/Square44x44Logo.targetsize-24_altform-unplated.png
new file mode 100644
index 0000000..f6c02ce
Binary files /dev/null and b/Assets/Square44x44Logo.targetsize-24_altform-unplated.png differ
diff --git a/Assets/StoreLogo.png b/Assets/StoreLogo.png
new file mode 100644
index 0000000..7385b56
Binary files /dev/null and b/Assets/StoreLogo.png differ
diff --git a/Assets/Wide310x150Logo.scale-200.png b/Assets/Wide310x150Logo.scale-200.png
new file mode 100644
index 0000000..288995b
Binary files /dev/null and b/Assets/Wide310x150Logo.scale-200.png differ
diff --git a/Controls/LoginButton.xaml b/Controls/LoginButton.xaml
new file mode 100644
index 0000000..bd263f3
--- /dev/null
+++ b/Controls/LoginButton.xaml
@@ -0,0 +1,38 @@
+<Button
+    x:Class="MicaApps.Upw.Mail.Controls.LoginButton"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail.Controls"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    Background="White"
+    mc:Ignorable="d">
+    <Grid>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="50"/>
+            <ColumnDefinition Width="*"/>
+            <ColumnDefinition Width="50"/>
+        </Grid.ColumnDefinitions>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*"/>
+        </Grid.RowDefinitions>
+        <!-- Left Icon -->
+        <Image Grid.Column="0" x:Name="LeftIcon" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="5"/>
+        <!-- Right Icon -->
+        <Image Grid.Column="2" x:Name="RightIcon" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="5"/>
+        <!-- Content Grid -->
+        <Grid Grid.Column="1" MinWidth="200">
+            <Grid.RowDefinitions>
+                <RowDefinition Height="3*"/>
+                <RowDefinition Height="2*"/>
+            </Grid.RowDefinitions>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*"/>
+            </Grid.ColumnDefinitions>
+            <!-- Title -->
+            <TextBlock Grid.Row="0" FontSize="20" x:Name="textblock_title" HorizontalAlignment="Left" VerticalAlignment="Center"/>
+            <!-- Subtitle -->
+            <TextBlock Grid.Row="1" FontSize="12" x:Name="textblock_subTitle"  HorizontalAlignment="Left" VerticalAlignment="Center"/>
+        </Grid>
+    </Grid>
+</Button>
diff --git a/Controls/LoginButton.xaml.cs b/Controls/LoginButton.xaml.cs
new file mode 100644
index 0000000..2dc38a1
--- /dev/null
+++ b/Controls/LoginButton.xaml.cs
@@ -0,0 +1,39 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+
+//https://go.microsoft.com/fwlink/?LinkId=234236 上介绍了“用户控件”项模板
+
+namespace MicaApps.Upw.Mail.Controls
+{
+    public sealed partial class LoginButton : Button
+    {
+        public LoginButton()
+        {
+            this.InitializeComponent();
+        }
+
+        /// <summary>
+        /// 主标题
+        /// </summary>
+        public string title { set=>this.textblock_title.Text = value; }
+        /// <summary>
+        /// 副标题
+        /// </summary>
+        public string subTitle { set => this.textblock_subTitle.Text = value; }
+        
+
+
+    }
+}
diff --git a/MainPage.xaml b/MainPage.xaml
new file mode 100644
index 0000000..d55f01a
--- /dev/null
+++ b/MainPage.xaml
@@ -0,0 +1,15 @@
+<Page
+    x:Class="MicaApps.Upw.Mail.MainPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d"
+    Loaded="Page_Loaded"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+
+    <Grid>
+        <Frame x:Name="frame_main" />
+    </Grid>
+</Page>
diff --git a/MainPage.xaml.cs b/MainPage.xaml.cs
new file mode 100644
index 0000000..4e21eaf
--- /dev/null
+++ b/MainPage.xaml.cs
@@ -0,0 +1,40 @@
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using System.Threading.Tasks;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+
+// https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x804 上介绍了“空白页”项模板
+
+namespace MicaApps.Upw.Mail
+{
+    /// <summary>
+    /// 可用于自身或导航至 Frame 内部的空白页。
+    /// </summary>
+    public sealed partial class MainPage : Page
+    {
+        public MainPage()
+        {
+            this.InitializeComponent();
+            
+        }
+
+
+
+        private void Page_Loaded(object sender, RoutedEventArgs e)
+        {
+            this.frame_main.Navigate(typeof(Pages.LoginPage));
+        }
+    }
+}
diff --git a/MicaApps.Upw.Mail.csproj b/MicaApps.Upw.Mail.csproj
new file mode 100644
index 0000000..b54aba7
--- /dev/null
+++ b/MicaApps.Upw.Mail.csproj
@@ -0,0 +1,222 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <ProjectGuid>{77A48790-BE44-4F0B-90FE-1AD09730BF47}</ProjectGuid>
+    <OutputType>AppContainerExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>MicaApps.Upw.Mail</RootNamespace>
+    <AssemblyName>MicaApps.Upw.Mail</AssemblyName>
+    <DefaultLanguage>zh-CN</DefaultLanguage>
+    <TargetPlatformIdentifier>UAP</TargetPlatformIdentifier>
+    <TargetPlatformVersion Condition=" '$(TargetPlatformVersion)' == '' ">10.0.19041.0</TargetPlatformVersion>
+    <TargetPlatformMinVersion>10.0.17763.0</TargetPlatformMinVersion>
+    <MinimumVisualStudioVersion>14</MinimumVisualStudioVersion>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{A5A43C5B-DE2A-4C0C-9213-0A381AF9435A};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <WindowsXamlEnableOverview>true</WindowsXamlEnableOverview>
+    <AppxPackageSigningEnabled>false</AppxPackageSigningEnabled>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\ARM\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>ARM</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM'">
+    <OutputPath>bin\ARM\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>ARM</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM64'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\ARM64\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>ARM64</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM64'">
+    <OutputPath>bin\ARM64\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>ARM64</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x64\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
+    <OutputPath>bin\x64\Release\</OutputPath>
+    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_UWP</DefineConstants>
+    <Optimize>true</Optimize>
+    <NoWarn>;2008</NoWarn>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x64</PlatformTarget>
+    <UseVSHostingProcess>false</UseVSHostingProcess>
+    <ErrorReport>prompt</ErrorReport>
+    <Prefer32Bit>true</Prefer32Bit>
+    <UseDotNetNativeToolchain>true</UseDotNetNativeToolchain>
+  </PropertyGroup>
+  <PropertyGroup>
+    <RestoreProjectStyle>PackageReference</RestoreProjectStyle>
+  </PropertyGroup>
+  <ItemGroup>
+    <Compile Include="App.xaml.cs">
+      <DependentUpon>App.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Controls\LoginButton.xaml.cs">
+      <DependentUpon>LoginButton.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="MainPage.xaml.cs">
+      <DependentUpon>MainPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Models\Enums\MailType.cs" />
+    <Compile Include="Models\ImapInfo.cs" />
+    <Compile Include="Models\Letter.cs" />
+    <Compile Include="Models\UserData.cs" />
+    <Compile Include="Models\UserDataByImap.cs" />
+    <Compile Include="Pages\HomePagel.xaml.cs">
+      <DependentUpon>HomePagel.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\LoginPage.xaml.cs">
+      <DependentUpon>LoginPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\Login\LoginByImapPage.xaml.cs">
+      <DependentUpon>LoginByImapPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Pages\MailPage.xaml.cs">
+      <DependentUpon>MailPage.xaml</DependentUpon>
+    </Compile>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Services\LoginStatus.cs" />
+    <Compile Include="Services\StaticValues.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <AppxManifest Include="Package.appxmanifest">
+      <SubType>Designer</SubType>
+    </AppxManifest>
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Properties\Default.rd.xml" />
+    <Content Include="Assets\LockScreenLogo.scale-200.png" />
+    <Content Include="Assets\SplashScreen.scale-200.png" />
+    <Content Include="Assets\Square150x150Logo.scale-200.png" />
+    <Content Include="Assets\Square44x44Logo.scale-200.png" />
+    <Content Include="Assets\Square44x44Logo.targetsize-24_altform-unplated.png" />
+    <Content Include="Assets\StoreLogo.png" />
+    <Content Include="Assets\Wide310x150Logo.scale-200.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <ApplicationDefinition Include="App.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </ApplicationDefinition>
+    <Page Include="Controls\LoginButton.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="MainPage.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Include="Pages\HomePagel.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\LoginPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\Login\LoginByImapPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+    <Page Include="Pages\MailPage.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="MailKit">
+      <Version>4.3.0</Version>
+    </PackageReference>
+    <PackageReference Include="Microsoft.Extensions.Hosting">
+      <Version>8.0.0</Version>
+    </PackageReference>
+    <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform">
+      <Version>6.2.14</Version>
+    </PackageReference>
+    <PackageReference Include="MimeKit">
+      <Version>4.3.0</Version>
+    </PackageReference>
+  </ItemGroup>
+  <ItemGroup>
+    <PRIResource Include="Resources\Strings.resw" />
+  </ItemGroup>
+  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '14.0' ">
+    <VisualStudioVersion>14.0</VisualStudioVersion>
+  </PropertyGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
\ No newline at end of file
diff --git a/MicaApps.Upw.Mail.sln b/MicaApps.Upw.Mail.sln
new file mode 100644
index 0000000..8d71363
--- /dev/null
+++ b/MicaApps.Upw.Mail.sln
@@ -0,0 +1,79 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34330.188
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MicaApps.Upw.Mail", "MicaApps.Upw.Mail.csproj", "{77A48790-BE44-4F0B-90FE-1AD09730BF47}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|ARM = Debug|ARM
+		Debug|ARM64 = Debug|ARM64
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|ARM = Release|ARM
+		Release|ARM64 = Release|ARM64
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|Any CPU.ActiveCfg = Debug|x64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|Any CPU.Build.0 = Debug|x64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|Any CPU.Deploy.0 = Debug|x64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|ARM.ActiveCfg = Debug|ARM
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|ARM.Build.0 = Debug|ARM
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|ARM.Deploy.0 = Debug|ARM
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+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|ARM64.Build.0 = Debug|ARM64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|ARM64.Deploy.0 = Debug|ARM64
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+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|x64.Build.0 = Debug|x64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|x64.Deploy.0 = Debug|x64
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+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|x86.Build.0 = Debug|x86
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Debug|x86.Deploy.0 = Debug|x86
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|Any CPU.ActiveCfg = Release|x64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|Any CPU.Build.0 = Release|x64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|Any CPU.Deploy.0 = Release|x64
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+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|ARM.Build.0 = Release|ARM
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|ARM.Deploy.0 = Release|ARM
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|ARM64.ActiveCfg = Release|ARM64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|ARM64.Build.0 = Release|ARM64
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|ARM64.Deploy.0 = Release|ARM64
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+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|x86.Build.0 = Release|x86
+		{77A48790-BE44-4F0B-90FE-1AD09730BF47}.Release|x86.Deploy.0 = Release|x86
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|ARM.ActiveCfg = Debug|ARM
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|ARM.Build.0 = Debug|ARM
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|ARM64.Build.0 = Debug|ARM64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|x64.ActiveCfg = Debug|x64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|x64.Build.0 = Debug|x64
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+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Debug|x86.Build.0 = Debug|x86
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|ARM.ActiveCfg = Release|ARM
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|ARM.Build.0 = Release|ARM
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|ARM64.ActiveCfg = Release|ARM64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|ARM64.Build.0 = Release|ARM64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|x64.ActiveCfg = Release|x64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|x64.Build.0 = Release|x64
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|x86.ActiveCfg = Release|x86
+		{11FED196-CDE6-4685-B094-3276C7F129F9}.Release|x86.Build.0 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {A29722C2-BB0B-41C4-8925-3DFE6A793CD4}
+	EndGlobalSection
+EndGlobal
diff --git a/Models/Enums/MailType.cs b/Models/Enums/MailType.cs
new file mode 100644
index 0000000..b26eeca
--- /dev/null
+++ b/Models/Enums/MailType.cs
@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MicaApps.Upw.Mail.Models.Enums
+{
+    /// <summary>
+    /// 邮件类型
+    /// </summary>
+    internal enum MailType
+    {
+        Receiving, Sending
+    }
+}
diff --git a/Models/ImapInfo.cs b/Models/ImapInfo.cs
new file mode 100644
index 0000000..2d13dd7
--- /dev/null
+++ b/Models/ImapInfo.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MailKit.Security;
+using MailKit;
+using MailKit.Net.Imap;
+using System.Xml.Linq;
+using Microsoft.Extensions.DependencyInjection;
+using Windows.ApplicationModel.Resources;
+using System.IO;
+using System.Threading;
+using Windows.Media.Protection.PlayReady;
+
+namespace MicaApps.Upw.Mail.Models
+{
+    internal class ImapInfo : ImapClient
+    {
+        //private readonly ResourceLoader resourceLoader = ResourceLoader.GetStringForReference();
+        public string host { get;private set; }
+        public int port { get; private set; }
+        public SecureSocketOptions secureSocketOptions { get; set; } = SecureSocketOptions.SslOnConnect;
+        public ImapImplementation imapImplementation { get; set; }
+        public ImapInfo(string host,int port)
+        {
+            this.host = host;
+            this.port = port;
+            this.imapImplementation = new ImapImplementation
+            {
+                Name = @"MicaApps.Mail.UWP",
+                Version = @"1.0",
+            };
+        }
+
+        public async Task ConnectAsync(string username,string authorizationCode)
+        {
+
+            try
+            {
+                // 连接到 IMAP 服务器
+                await this.ConnectAsync(this.host, this.port, this.secureSocketOptions);
+                // 添加客户端身份标识
+                _ = await this.IdentifyAsync(this.imapImplementation);
+                // 身份验证
+                await this.AuthenticateAsync(username, authorizationCode);
+            }
+            catch (AuthenticationException ex)
+            {
+                throw new Exception(ex.Message);
+            }
+            catch(Exception ex)
+            {
+                throw new Exception(ex.Message);
+            }
+        }
+
+
+
+
+
+    }
+}
diff --git a/Models/Letter.cs b/Models/Letter.cs
new file mode 100644
index 0000000..d09cecd
--- /dev/null
+++ b/Models/Letter.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MimeKit;
+
+namespace MicaApps.Upw.Mail.Models
+{
+    /// <summary>
+    /// 专门用于储存每封信件
+    /// </summary>
+    internal class Letter :MimeMessage
+    {
+        public string title { get => this.Subject; }
+
+
+    }
+}
diff --git a/Models/UserData.cs b/Models/UserData.cs
new file mode 100644
index 0000000..33a17ac
--- /dev/null
+++ b/Models/UserData.cs
@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MicaApps.Upw.Mail.Models
+{
+    internal abstract class UserData
+    {
+        public string username { get; set; } = string.Empty;
+        
+
+        public ObservableCollection<Letter> letters { get; set; } = new ObservableCollection<Letter>();
+
+
+        public bool isEmpty { get => string.IsNullOrEmpty(username); }
+
+
+
+        public abstract Task CollectLetter();
+        public abstract Task LoginIn();
+
+
+        public abstract bool IsLogin { get; }
+
+
+    }
+}
diff --git a/Models/UserDataByImap.cs b/Models/UserDataByImap.cs
new file mode 100644
index 0000000..4a8527e
--- /dev/null
+++ b/Models/UserDataByImap.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using MimeKit;
+using MailKit.Net.Imap;
+using MailKit.Security;
+using Windows.UI.Xaml;
+using MailKit;
+
+namespace MicaApps.Upw.Mail.Models
+{
+    /// <summary>
+    /// 通过Imap来获取信息
+    /// </summary>
+    internal class UserDataByImap : UserData
+    {
+        public ImapInfo imapInfo { get; set; }
+
+        /// <summary>
+        /// 授权码
+        /// </summary>
+        public string authorizationCode { get; set; }
+
+        public UserDataByImap(string username,string authorizationCode,ImapInfo imapInfo)
+        {
+            this.username = username;
+            this.authorizationCode = authorizationCode;
+            this.imapInfo = imapInfo;
+        }
+
+
+        public override async Task LoginIn()
+        {
+            await this.imapInfo.ConnectAsync(this.username,this.authorizationCode);
+        }
+
+        public override async Task CollectLetter()
+        {
+            var inbox = this.imapInfo.Inbox;
+            await inbox.OpenAsync(FolderAccess.ReadOnly);
+            for (int i = 0; i < inbox.Count; i++)
+            {
+                var message = await inbox.GetMessageAsync(i);
+                this.letters.Add(message as Letter);
+            }
+        }
+
+
+        public override bool IsLogin { get => this.imapInfo.IsConnected; }
+
+    }
+}
diff --git a/Package.appxmanifest b/Package.appxmanifest
new file mode 100644
index 0000000..1a5ed77
--- /dev/null
+++ b/Package.appxmanifest
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<Package
+  xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
+  xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
+  xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
+  IgnorableNamespaces="uap mp">
+
+  <Identity
+    Name="28372863-4772-4a96-b681-8911141b30e5"
+    Publisher="CN=kalev"
+    Version="1.0.0.0" />
+
+  <mp:PhoneIdentity PhoneProductId="28372863-4772-4a96-b681-8911141b30e5" PhonePublisherId="00000000-0000-0000-0000-000000000000"/>
+
+  <Properties>
+    <DisplayName>KalevaAalto.Upw.Mail</DisplayName>
+    <PublisherDisplayName>kalev</PublisherDisplayName>
+    <Logo>Assets\StoreLogo.png</Logo>
+  </Properties>
+
+  <Dependencies>
+    <TargetDeviceFamily Name="Windows.Universal" MinVersion="10.0.0.0" MaxVersionTested="10.0.0.0" />
+  </Dependencies>
+
+  <Resources>
+    <Resource Language="x-generate"/>
+  </Resources>
+
+  <Applications>
+    <Application Id="App"
+      Executable="$targetnametoken$.exe"
+      EntryPoint="KalevaAalto.Upw.Mail.App">
+      <uap:VisualElements
+        DisplayName="KalevaAalto.Upw.Mail"
+        Square150x150Logo="Assets\Square150x150Logo.png"
+        Square44x44Logo="Assets\Square44x44Logo.png"
+        Description="KalevaAalto.Upw.Mail"
+        BackgroundColor="transparent">
+        <uap:DefaultTile Wide310x150Logo="Assets\Wide310x150Logo.png"/>
+        <uap:SplashScreen Image="Assets\SplashScreen.png" />
+      </uap:VisualElements>
+    </Application>
+  </Applications>
+
+  <Capabilities>
+    <Capability Name="internetClient" />
+  </Capabilities>
+</Package>
\ No newline at end of file
diff --git a/Pages/HomePagel.xaml b/Pages/HomePagel.xaml
new file mode 100644
index 0000000..6172785
--- /dev/null
+++ b/Pages/HomePagel.xaml
@@ -0,0 +1,20 @@
+<Page
+    x:Class="MicaApps.Upw.Mail.Pages.HomePagel"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail.Pages"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+
+    <Grid>
+        <NavigationView ItemInvoked="NavigationView_ItemInvoked" IsBackButtonVisible="Collapsed">
+            <NavigationView.MenuItems>
+                <NavigationViewItem Tag="receive">收件箱</NavigationViewItem>
+            </NavigationView.MenuItems>
+            <Frame x:Name="frame_main"/>
+        </NavigationView>
+        
+    </Grid>
+</Page>
diff --git a/Pages/HomePagel.xaml.cs b/Pages/HomePagel.xaml.cs
new file mode 100644
index 0000000..c68b38f
--- /dev/null
+++ b/Pages/HomePagel.xaml.cs
@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+
+// https://go.microsoft.com/fwlink/?LinkId=234238 上介绍了“空白页”项模板
+
+namespace MicaApps.Upw.Mail.Pages
+{
+    /// <summary>
+    /// 可用于自身或导航至 Frame 内部的空白页。
+    /// </summary>
+    public sealed partial class HomePagel : Page
+    {
+        public HomePagel()
+        {
+            this.InitializeComponent();
+        }
+
+        private void NavigationView_ItemInvoked(NavigationView sender, NavigationViewItemInvokedEventArgs args)
+        {
+            // 获取点击的菜单项的 Tag
+            string tag = args.InvokedItemContainer.Tag.ToString();
+
+            // 根据 Tag 导航到相应的页面
+            switch (tag)
+            {
+                case @"receive":
+                    this.frame_main.Navigate(typeof(MailPage),tag);
+                    break;
+            }
+        }
+    }
+}
diff --git a/Pages/Login/LoginByImapPage.xaml b/Pages/Login/LoginByImapPage.xaml
new file mode 100644
index 0000000..06963da
--- /dev/null
+++ b/Pages/Login/LoginByImapPage.xaml
@@ -0,0 +1,49 @@
+<Page
+    x:Class="MicaApps.Upw.Mail.Pages.Login.LoginByImapPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail.Pages.Login"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    mc:Ignorable="d"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+    <Page.Resources>
+        <Thickness x:Key="defaultMargin">10</Thickness>
+    </Page.Resources>
+
+    <Grid>
+        <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center">
+            <Grid Margin="{StaticResource defaultMargin}">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="550"/>
+                    <ColumnDefinition Width="300"/>
+                </Grid.ColumnDefinitions>
+                <TextBox Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" PlaceholderText="host" x:Name="textbox_host" Text="imap.qq.com"/>
+                <TextBox Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" PlaceholderText="port" Text="993" x:Name="textbox_port"/>
+            </Grid>
+
+            <Grid Margin="{StaticResource defaultMargin}">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="500"/>
+                    <ColumnDefinition Width="50"/>
+                    <ColumnDefinition Width="300"/>
+                </Grid.ColumnDefinitions>
+                <TextBox Grid.Column="0" x:Name="textbox_username" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" PlaceholderText="username"/>
+                <TextBlock Grid.Column="1" Text="@" HorizontalAlignment="Stretch" VerticalAlignment="Center" HorizontalTextAlignment="Center" FontSize="18" FontWeight="Bold"/>
+                <ComboBox Grid.Column="2" SelectedIndex="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" x:Name="combox_mailhost" SelectionChanged="combox_mailhost_SelectionChanged" IsEditable="True">
+                    <ComboBoxItem Content="qq.com"/>
+                    <ComboBoxItem Content="163.com"/>
+                </ComboBox>
+            </Grid>
+            <TextBox Margin="{StaticResource defaultMargin}" PlaceholderText="password" x:Name="textbox_password"/>
+            <Grid Margin="{StaticResource defaultMargin}">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="*"/>
+                    <ColumnDefinition Width="*"/>
+                </Grid.ColumnDefinitions>
+                <Button Grid.Column="0" HorizontalAlignment="Stretch" Margin="5" Click="Button_Login_Click">Login</Button>
+                <Button Grid.Column="1" HorizontalAlignment="Stretch" Margin="5" Click="Button_Back_Click">Back</Button>
+            </Grid>
+        </StackPanel>
+    </Grid>
+</Page>
diff --git a/Pages/Login/LoginByImapPage.xaml.cs b/Pages/Login/LoginByImapPage.xaml.cs
new file mode 100644
index 0000000..f121cc4
--- /dev/null
+++ b/Pages/Login/LoginByImapPage.xaml.cs
@@ -0,0 +1,86 @@
+using MicaApps.Upw.Mail.Models;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using System.Text;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+
+// https://go.microsoft.com/fwlink/?LinkId=234238 上介绍了“空白页”项模板
+
+namespace MicaApps.Upw.Mail.Pages.Login
+{
+    /// <summary>
+    /// 可用于自身或导航至 Frame 内部的空白页。
+    /// </summary>
+    public sealed partial class LoginByImapPage : Page
+    {
+        private readonly Services.StaticValues staticValues = App.Services.GetService<Services.StaticValues>();
+        private readonly Services.LoginStatus loginStatus = App.Services.GetService<Services.LoginStatus>();
+
+        public LoginByImapPage()
+        {
+            this.InitializeComponent();
+        }
+
+        private void combox_mailhost_SelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            Grid grid = new Grid();
+            var m = grid.Margin;
+        }
+
+
+        private string username { get => this.textbox_username.Text + '@' + this.combox_mailhost.Text; }
+        private string password { get => this.textbox_password.Text; }
+        private string host { get=>this.textbox_host.Text; }
+        private int port { get => Convert.ToInt32(this.textbox_port.Text); }
+
+
+        private async void Button_Login_Click(object sender, RoutedEventArgs e)
+        {
+
+            try
+            {
+                this.loginStatus.userData = new UserDataByImap(
+                    this.username,
+                    this.password,
+                    new ImapInfo(this.host, this.port)
+                    );
+
+                await this.loginStatus.userData.LoginIn();
+
+                this.Frame.Navigate(typeof(HomePagel));
+
+
+            }
+            catch (Exception ex)
+            {
+                // 创建 ContentDialog
+                ContentDialog dialog = new ContentDialog
+                {
+                    Title = "登录失败",
+                    Content = ex.Message,
+                    CloseButtonText = "关闭"
+                };
+
+                // 显示提示框并等待用户响应
+                ContentDialogResult result = await dialog.ShowAsync();
+            }
+        }
+
+        private void Button_Back_Click(object sender, RoutedEventArgs e)
+        {
+            this.Frame.Navigate(typeof(LoginPage));
+        }
+    }
+}
diff --git a/Pages/LoginPage.xaml b/Pages/LoginPage.xaml
new file mode 100644
index 0000000..0674ae1
--- /dev/null
+++ b/Pages/LoginPage.xaml
@@ -0,0 +1,24 @@
+<Page
+    x:Class="MicaApps.Upw.Mail.Pages.LoginPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail.Pages"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:cus="using:MicaApps.Upw.Mail.Controls"
+    mc:Ignorable="d"
+    Loaded="Page_Loaded"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+
+    <Grid>
+        <StackPanel HorizontalAlignment="Center">
+            <Image Width="300" Height="200" Margin="10" HorizontalAlignment="Center"/>
+            <cus:LoginButton title="OutLook" subTitle="Login In OutLook" Width="500" IsEnabled="False"/>
+            <cus:LoginButton title="Gmail" Width="500" IsEnabled="False"/>
+            <cus:LoginButton title="iCloud" Width="500" IsEnabled="False"/>
+            <cus:LoginButton title="Exchange" Width="500" IsEnabled="False"/>
+            <cus:LoginButton title="Other" subTitle="POP,IMAP" Width="500" Tag="other" Click="Button_Login_Click"/>
+            <cus:LoginButton title="Test" subTitle="测试专用" Width="500" Tag="other" Click="Button_Test_Click"/>
+        </StackPanel>
+    </Grid>
+</Page>
diff --git a/Pages/LoginPage.xaml.cs b/Pages/LoginPage.xaml.cs
new file mode 100644
index 0000000..ec87354
--- /dev/null
+++ b/Pages/LoginPage.xaml.cs
@@ -0,0 +1,80 @@
+using MicaApps.Upw.Mail.Controls;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using Windows.Devices.Enumeration;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+
+// https://go.microsoft.com/fwlink/?LinkId=234238 上介绍了“空白页”项模板
+
+namespace MicaApps.Upw.Mail.Pages
+{
+    /// <summary>
+    /// 可用于自身或导航至 Frame 内部的空白页。
+    /// </summary>
+    public sealed partial class LoginPage : Page
+    {
+        public LoginPage()
+        {
+            this.InitializeComponent();
+        }
+
+
+        /// <summary>
+        /// 页面加载函数
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        private void Page_Loaded(object sender, RoutedEventArgs e)
+        {
+
+        }
+
+        private void Button_Login_Click(object sender, RoutedEventArgs e)
+        {
+            if (sender is LoginButton button)
+            {
+                object tagValue = button.Tag;
+
+                if (tagValue != null)
+                {
+                    // 在这里使用按钮的 Tag 属性值
+                    string tagString = tagValue.ToString();
+                    // 其他处理逻辑...
+                    switch (tagString)
+                    {
+                        case @"other":
+                            this.Frame.Navigate(typeof(Login.LoginByImapPage));
+                            break;
+                    }
+                }
+            }
+        }
+
+
+        private void Button_Test_Click(object sender, RoutedEventArgs e)
+        {
+#if DEBUG
+            this.Frame.Navigate(typeof(HomePagel));
+#endif
+        }
+
+
+
+
+        private void NavigationView_ItemInvoked(NavigationView sender, NavigationViewItemInvokedEventArgs args)
+        {
+            
+        }
+    }
+}
diff --git a/Pages/MailPage.xaml b/Pages/MailPage.xaml
new file mode 100644
index 0000000..e90c2d7
--- /dev/null
+++ b/Pages/MailPage.xaml
@@ -0,0 +1,41 @@
+<Page
+    x:Class="MicaApps.Upw.Mail.Pages.MailPage"
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:local="using:MicaApps.Upw.Mail.Pages"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:model="using:MicaApps.Upw.Mail.Models"
+    mc:Ignorable="d"
+    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
+
+    <Grid>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="*"/>
+            <RowDefinition Height="50"/>
+        </Grid.RowDefinitions>
+        <Grid.ColumnDefinitions>
+            <ColumnDefinition Width="300"/>
+            <ColumnDefinition Width="*"/>
+        </Grid.ColumnDefinitions>
+        <ListView Grid.Row="0" Grid.Column="0" BorderThickness="2" Margin="10" x:Name="listview" ItemClick="listview_ItemClick">
+            <ListView.ItemTemplate>
+                <DataTemplate x:DataType="model:Letter">
+                    <Grid BorderThickness="2" Margin="2" Background="AliceBlue">
+                        <TextBlock Text="{Binding title}" FontSize="25"/>
+                    </Grid>
+                </DataTemplate>
+            </ListView.ItemTemplate>
+        </ListView>
+
+        <TextBlock Margin="10" x:Name="textblock_area" Grid.Row="0" Grid.Column="1" TextWrapping="Wrap" Text="s"/>
+
+        <TextBlock Grid.Row="1" x:Name="textblock_status" Text="Null" FontSize="30"/>
+
+
+        <!--<StackPanel>
+            <TextBlock Text="测试" FontSize="100"/>
+            <TextBlock x:Name="textbox_test" FontSize="100"/>
+        </StackPanel>-->
+    </Grid>
+</Page>
diff --git a/Pages/MailPage.xaml.cs b/Pages/MailPage.xaml.cs
new file mode 100644
index 0000000..0bbb11a
--- /dev/null
+++ b/Pages/MailPage.xaml.cs
@@ -0,0 +1,103 @@
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices.WindowsRuntime;
+using System.Threading.Tasks;
+using Windows.Foundation;
+using Windows.Foundation.Collections;
+using Windows.UI.Xaml;
+using Windows.UI.Xaml.Controls;
+using Windows.UI.Xaml.Controls.Primitives;
+using Windows.UI.Xaml.Data;
+using Windows.UI.Xaml.Input;
+using Windows.UI.Xaml.Media;
+using Windows.UI.Xaml.Navigation;
+
+// https://go.microsoft.com/fwlink/?LinkId=234238 上介绍了“空白页”项模板
+
+namespace MicaApps.Upw.Mail.Pages
+{
+    /// <summary>
+    /// 可用于自身或导航至 Frame 内部的空白页。
+    /// </summary>
+    public sealed partial class MailPage : Page
+    {
+        private readonly Services.LoginStatus loginStatus = App.Services.GetService<Services.LoginStatus>();
+        private string tag;
+        private DispatcherTimer timer;
+
+
+        public MailPage()
+        {
+            this.InitializeComponent();
+            
+
+
+            // 初始化定时器
+            this.timer = new DispatcherTimer();
+            this.timer.Interval = TimeSpan.FromSeconds(1); // 设置定时器间隔为1秒
+            this.timer.Tick += (sender, e) =>
+            {
+                this.textblock_status.Text = this.loginStatus.userData != null ? this.loginStatus.userData.letters.Count().ToString() : @"未连接";
+            };
+        }
+
+
+
+        
+
+
+        /// <summary>
+        /// 处理传递过来参数
+        /// </summary>
+        protected override async void OnNavigatedTo(NavigationEventArgs e)
+        {
+            base.OnNavigatedTo(e);
+
+            if (e.Parameter != null)
+            {
+                // 处理传递过来的参数
+                this.tag = (string)e.Parameter;
+                // 在这里添加你的逻辑
+
+            }
+
+
+            if (this.loginStatus.userData != null)
+            {
+                this.listview.ItemsSource = this.loginStatus.userData.letters;
+                await this.loginStatus.userData.CollectLetter();
+                
+            }
+            timer.Start();
+        }
+
+
+        protected override void OnNavigatedFrom(NavigationEventArgs e)
+        {
+            base.OnNavigatedFrom(e);
+
+            // 停止定时器，释放资源
+            timer.Stop();
+        }
+
+        private void listview_ItemClick(object sender, ItemClickEventArgs e)
+        {
+            // 获取点击的项的数据
+            Models.Letter clickedItem = e.ClickedItem as Models.Letter;
+
+            // 处理点击事件，例如显示一个消息框
+            if (clickedItem != null)
+            {
+                this.textblock_area.Text = clickedItem.TextBody;
+            }
+            else
+            {
+                this.textblock_area.Text = @"Error!";
+            }
+        }
+    }
+}
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..97d1f68
--- /dev/null
+++ b/Properties/AssemblyInfo.cs
@@ -0,0 +1,29 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("KalevaAalto.Upw.Mail")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("KalevaAalto.Upw.Mail")]
+[assembly: AssemblyCopyright("Copyright ©  2023")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+//可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值
+//通过使用 "*"，如下所示:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: ComVisible(false)]
\ No newline at end of file
diff --git a/Properties/Default.rd.xml b/Properties/Default.rd.xml
new file mode 100644
index 0000000..769324f
--- /dev/null
+++ b/Properties/Default.rd.xml
@@ -0,0 +1,31 @@
+<!--
+    此文件包含 .NET Native 使用的运行时指令。此处的默认值适合大多数
+    开发人员。但可通过修改这些参数来修改 .NET Native
+    优化程序的行为。
+
+    运行时指令记录在 https://go.microsoft.com/fwlink/?LinkID=391919
+
+    完全启用对 App1.MyClass 及其所有公共/私有成员的反射
+    <Type Name="App1.MyClass" Dynamic="Required All"/>
+
+    通过 System.Int32 启用 AppClass<T> 的特定实例化动态创建
+    <TypeInstantiation Name="App1.AppClass" Arguments="System.Int32" Activate="Required Public" />
+
+    使用 Namespace 指令将反射策略应用于特定命名空间中的所有类型
+    <Namespace Name="DataClasses.ViewModels" Serialize="All" />
+-->
+
+<Directives xmlns="http://schemas.microsoft.com/netfx/2013/01/metadata">
+  <Application>
+    <!--
+      Name="*Application*" 的程序集元素将应用到应用程序包中的
+ 所有程序集。星号不是通配符。
+-->
+    <Assembly Name="*Application*" Dynamic="Required All" />
+    
+    
+    <!-- 在此处添加应用程序特定的运行时指令。-->
+
+
+  </Application>
+</Directives>
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..09ff0f9
--- /dev/null
+++ b/README.md
@@ -0,0 +1 @@
+# KalevaAalto.Upw.Mail
\ No newline at end of file
diff --git a/Resources/Strings.resw b/Resources/Strings.resw
new file mode 100644
index 0000000..2380118
--- /dev/null
+++ b/Resources/Strings.resw
@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <data name="ProjectName" xml:space="preserve">
+    <value>MicaApps.Mail.UWP</value>
+  </data>
+  <data name="Version" xml:space="preserve">
+    <value>1.0</value>
+  </data>
+</root>
\ No newline at end of file
diff --git a/Services/LoginStatus.cs b/Services/LoginStatus.cs
new file mode 100644
index 0000000..6f255d6
--- /dev/null
+++ b/Services/LoginStatus.cs
@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Windows.UI.Xaml.Media.Animation;
+
+namespace MicaApps.Upw.Mail.Services
+{
+    internal class LoginStatus
+    {
+        public Models.UserData userData { get; set; }
+        
+        public bool IsLogin { get=>this.userData != null && this.userData.IsLogin;}
+
+
+
+    }
+}
diff --git a/Services/StaticValues.cs b/Services/StaticValues.cs
new file mode 100644
index 0000000..4b51c4b
--- /dev/null
+++ b/Services/StaticValues.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+
+namespace MicaApps.Upw.Mail.Services
+{
+    internal class StaticValues
+    {
+
+        
+
+        public Dictionary<string, Models.ImapInfo> imapInfos { get; } = new Dictionary<string, Models.ImapInfo>
+        {
+            { @"qq.com",new Models.ImapInfo(@"imap.qq.com",993) },
+            { @"163.com",new Models.ImapInfo(@"imap.163.com",993) },
+        };
+
+
+
+    }
+}
diff --git a/Services/TestService.cs b/Services/TestService.cs
new file mode 100644
index 0000000..20e3d9a
--- /dev/null
+++ b/Services/TestService.cs
@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Mail;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+using System.Threading;
+using MailKit.Security;
+using MailKit;
+using MailKit.Net.Imap;
+using Windows.UI.Xaml.Controls;
+
+
+
+namespace KalevaAalto.Upw.Base.Services
+{
+    public class TestService
+    {
+
+
+
+        public void test(Action<string> AddString)
+        {
+            string username = @"kalevaaalto@163.com";
+            string password = @"RDYOIOUMYSWGAPLK";
+
+            using (var client = new ImapClient())
+            {
+                client.Connect(@"imap.163.com", 993, SecureSocketOptions.SslOnConnect);
+                client.Authenticate(username, password);
+
+                var clientImplementation = new ImapImplementation
+                {
+                    Name = "KalevaAalto.Upw",
+                    Version = "2.0"
+                };
+                _ = client.Identify(clientImplementation);
+
+
+                var inbox = client.Inbox;
+                inbox.Open(FolderAccess.ReadOnly);
+
+                AddString(@"Total messages: " + inbox.Count);
+
+                for (int i = 0; i < inbox.Count; i++)
+                {
+                    
+
+                    var message = inbox.GetMessage(i);
+                    var id = message.MessageId;
+                    AddString(@"Subject: " + message.Subject);
+                }
+
+                client.Disconnect(true);
+            }
+
+
+        }
+
+
+
+    }
+}