изменила класс program

SushiBar/App.config

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+	<appSettings>
+		<add key="SmtpClientHost" value="smtp.gmail.com" />
+		<add key="SmtpClientPort" value="587" />
+		<add key="PopHost" value="pop.gmail.com" />
+		<add key="PopPort" value="995" />
+		<add key="MailLogin" value="labwork15kafis@gmail.com" />
+		<add key="MailPassword" value="passlab15" />
+	</appSettings>
+</configuration>

SushiBar/FormMails.Designer.cs

@@ -0,0 +1,63 @@
+namespace SushiBarView
+{
+    partial class FormMails
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            dataGridView = new DataGridView();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // dataGridView
+            // 
+            dataGridView.BackgroundColor = Color.SkyBlue;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.Size = new Size(800, 450);
+            dataGridView.TabIndex = 0;
+            // 
+            // FormMails
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridView);
+            Name = "FormMails";
+            Text = "FormMails";
+            Load += FormMails_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridView;
+    }
+}

SushiBar/FormMails.cs

@@ -0,0 +1,44 @@
+using Microsoft.Extensions.Logging;
+using SushiBarContracts.BusinessLogicsContracts;
+
+namespace SushiBarView
+{
+    public partial class FormMails : Form
+    {
+        private readonly ILogger logger;
+        private readonly IMessageInfoLogic messageInfoLogic;
+        public FormMails(ILogger<FormMails> logger, IMessageInfoLogic messageInfoLogic)
+        {
+            this.logger = logger;
+            this.messageInfoLogic = messageInfoLogic;
+            InitializeComponent();
+        }
+
+        private void LoadData()
+        {
+            try
+            {
+                var list = messageInfoLogic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["ClientId"].Visible = false;
+                    dataGridView.Columns["MessageId"].Visible = false;
+                    dataGridView.Columns["Body"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                logger.LogInformation("Load list of mails");
+
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK);
+                logger.LogError("Load list of mails failed");
+            }
+        }
+
+        private void FormMails_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

SushiBar/FormMails.resx

@@ -0,0 +1,120 @@
+<?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>
+</root>

SushiBar/FormMain.Designer.cs

@@ -43,6 +43,7 @@
             buttonCreateOrder = new Button();
             buttonOrderIssued = new Button();
             buttonRefreshOrders = new Button();
+            списокПисемToolStripMenuItem = new ToolStripMenuItem();
             menuStrip1.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
             SuspendLayout();
@@ -50,7 +51,7 @@
             // menuStrip1
             // 
             menuStrip1.ImageScalingSize = new Size(20, 20);
-            menuStrip1.Items.AddRange(new ToolStripItem[] { ToolStripMenuItemRef, отчетыToolStripMenuItem, клиентыToolStripMenuItem, исполнителиToolStripMenuItem, запускРаботToolStripMenuItem });
+            menuStrip1.Items.AddRange(new ToolStripItem[] { ToolStripMenuItemRef, отчетыToolStripMenuItem, клиентыToolStripMenuItem, исполнителиToolStripMenuItem, запускРаботToolStripMenuItem, списокПисемToolStripMenuItem });
             menuStrip1.Location = new Point(0, 0);
             menuStrip1.Name = "menuStrip1";
             menuStrip1.Size = new Size(1316, 28);
@@ -174,6 +175,13 @@
             buttonRefreshOrders.UseVisualStyleBackColor = true;
             buttonRefreshOrders.Click += ButtonRef_Click;
             // 
+            // списокПисемToolStripMenuItem
+            // 
+            списокПисемToolStripMenuItem.Name = "списокПисемToolStripMenuItem";
+            списокПисемToolStripMenuItem.Size = new Size(121, 24);
+            списокПисемToolStripMenuItem.Text = "Список писем";
+            списокПисемToolStripMenuItem.Click += списокПисемToolStripMenuItem_Click;
+            // 
             // FormMain
             // 
             AutoScaleDimensions = new SizeF(8F, 20F);
@@ -214,5 +222,6 @@
         private ToolStripMenuItem клиентыToolStripMenuItem;
         private ToolStripMenuItem исполнителиToolStripMenuItem;
         private ToolStripMenuItem запускРаботToolStripMenuItem;
+        private ToolStripMenuItem списокПисемToolStripMenuItem;
     }
 }

SushiBar/FormMain.cs

@@ -162,5 +162,14 @@ namespace SushiBarView
             _workProcess.DoWork((Program.ServiceProvider?.GetService(typeof(IImplementerLogic)) as IImplementerLogic)!, _orderLogic);
             MessageBox.Show("Процесс обработки запущен", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
         }
+
+        private void списокПисемToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormMails));
+            if(service is FormMails form)
+            {
+                form.ShowDialog();
+            }
+        }
     }
 }

SushiBar/Program.cs

@@ -1,10 +1,13 @@
+using DocumentFormat.OpenXml.Wordprocessing;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
 using SushiBarBusinessLogic;
 using SushiBarBusinessLogic.BusinessLogic;
+using SushiBarBusinessLogic.MailWorker;
 using SushiBarBusinessLogic.OfficePackage;
 using SushiBarBusinessLogic.OfficePackage.Implements;
+using SushiBarContracts.BindingModel;
 using SushiBarContracts.BusinessLogicsContracts;
 using SushiBarContracts.StoragesContracts;
 using SushiBarDatabaseImplement.Implements;
@@ -30,11 +33,28 @@ namespace SushiBar
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
             var services = new ServiceCollection();
-            // Добавлено для устранения ошибки с кодировкой при сохранении в PDF
-            // чтобы заработало нужно поставить NuGet пакет System.Text.Encoding.CodePages
-            Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
             ConfigureServices(services);
             _serviceProvider = services.BuildServiceProvider();
+            try
+            {
+                var mailSender = _serviceProvider.GetService<AbstractMailWorker>();
+                mailSender?.MailConfig(new MailConfigBindingModel
+                {
+                    MailLogin = System.Configuration.ConfigurationManager.AppSettings["MailLogin"] ?? string.Empty,
+                    MailPassword = System.Configuration.ConfigurationManager.AppSettings["MailPassword"] ?? string.Empty,
+                    SmtpClientHost = System.Configuration.ConfigurationManager.AppSettings["SmtpClientHost"] ?? string.Empty,
+                    SmtpClientPort = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SmtpClient Port"]),
+                    PopHost = System.Configuration.ConfigurationManager.AppSettings["PopHost"] ?? string.Empty,
+                    PopPort = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["PopPort"])
+                });
+                // ñîçäàåì òàéìåð
+                var timer = new System.Threading.Timer(new TimerCallback(MailCheck!), null, 0, 100000);
+            }
+            catch (Exception ex)
+            {
+                var logger = _serviceProvider.GetService<ILogger>();
+                logger?.LogError(ex, "Îøèáêà ðàáîòû ñ ïî÷òîé");
+            }
             Application.Run(_serviceProvider.GetRequiredService<FormMain>());
         }
 
@@ -50,6 +70,7 @@ namespace SushiBar
             services.AddTransient<ISushiStorage, SushiStorage>();
             services.AddTransient<IClientStorage, ClientStorage>();
             services.AddTransient<IImplementerStorage, ImplementerStorage>();
+            services.AddTransient<IMessageInfoStorage, MessageInfoStorage>();
 
             services.AddTransient<IComponentLogic, ComponentLogic>();
             services.AddTransient<IOrderLogic, OrderLogic>();
@@ -58,6 +79,8 @@ namespace SushiBar
             services.AddTransient<IReportLogic, ReportLogic>();
             services.AddTransient<IWorkProcess, WorkModeling>();
             services.AddTransient<IImplementerLogic, ImplementerLogic>();
+            services.AddTransient<IMessageInfoLogic, MessageInfoLogic>();
+            services.AddTransient<AbstractMailWorker, MailKitWorker>();
 
             services.AddTransient<AbstractSaveToExcel, SaveToExcel>();
             services.AddTransient<AbstractSaveToWord, SaveToWord>();
@@ -75,7 +98,8 @@ namespace SushiBar
             services.AddTransient<FormReportSushiComponent>();
             services.AddTransient<FormImplementer>();
             services.AddTransient<FormImplementers>();
-
+            services.AddTransient<FormMails>();
         }
+        private static void MailCheck(object obj) => ServiceProvider?.GetService<AbstractMailWorker>()?.MailCheck();
     }
 }