Прописал добавленные классы для работы с почтой в главный метод программы, добавил конфигурационный файл

SecuritySystem/SecuritySystemView/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>

SecuritySystem/SecuritySystemView/Program.cs

@@ -2,8 +2,10 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
 using SecuritySystemBusinessLogic.BusinessLogics;
+using SecuritySystemBusinessLogic.MailWorker;
 using SecuritySystemBusinessLogic.OfficePackage;
 using SecuritySystemBusinessLogic.OfficePackage.Implements;
+using SecuritySystemContracts.BindingModels;
 using SecuritySystemContracts.BusinessLogicsContracts;
 using SecuritySystemContracts.StoragesContracts;
 using SecuritySystemDatabaseImplement.Implements;
@@ -29,6 +31,28 @@ namespace SecuritySystemView
             var services = new ServiceCollection();
             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["SmtpClientPort"]),
+                    PopHost = System.Configuration.ConfigurationManager.AppSettings["PopHost"] ?? string.Empty,
+                    PopPort = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["PopPort"])
+                });
+                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>());
         }
         private static void ConfigureServices(ServiceCollection services)
@@ -43,16 +67,19 @@ namespace SecuritySystemView
             services.AddTransient<ISecureStorage, SecureStorage>();
             services.AddTransient<IImplementerStorage, ImplementerStorage>();
             services.AddTransient<IClientStorage, ClientStorage>();
+            services.AddTransient<IMessageInfoStorage, MessageInfoStorage>();
             services.AddTransient<IComponentLogic, ComponentLogic>();
             services.AddTransient<IOrderLogic, OrderLogic>();
             services.AddTransient<ISecureLogic, SecureLogic>();
             services.AddTransient<IReportLogic, ReportLogic>();
             services.AddTransient<IClientLogic, ClientLogic>();
             services.AddTransient<IImplementerLogic, ImplementerLogic>();
+            services.AddTransient<IMessageInfoLogic, MessageInfoLogic>();
             services.AddTransient<IWorkProcess, WorkModeling>();
             services.AddTransient<AbstractSaveToWord, SaveToWord>();
             services.AddTransient<AbstractSaveToExcel, SaveToExcel>();
             services.AddTransient<AbstractSaveToPdf, SaveToPdf>();
+            services.AddSingleton<AbstractMailWorker, MailKitWorker>();
             services.AddTransient<FormMain>();
             services.AddTransient<FormComponent>();
             services.AddTransient<FormComponents>();
@@ -65,6 +92,8 @@ namespace SecuritySystemView
             services.AddTransient<FormClients>();
             services.AddTransient<FormImplementer>();
             services.AddTransient<FormImplementers>();
-        }
+            //services.AddTransient<FormMails>();
+        }
+        private static void MailCheck(object obj) => ServiceProvider?.GetService<AbstractMailWorker>()?.MailCheck();
     }
 }