diff --git a/AutoWorkshopBusinessLogic/BusinessLogics/ClientLogic.cs b/AutoWorkshopBusinessLogic/BusinessLogics/ClientLogic.cs
index 0bedb23..ace2432 100644
--- a/AutoWorkshopBusinessLogic/BusinessLogics/ClientLogic.cs
+++ b/AutoWorkshopBusinessLogic/BusinessLogics/ClientLogic.cs
@@ -4,10 +4,11 @@ using AutoWorkshopContracts.SearchModels;
 using AutoWorkshopContracts.StoragesContracts;
 using AutoWorkshopContracts.ViewModels;
 using Microsoft.Extensions.Logging;
+using System.Text.RegularExpressions;
 
 namespace AutoWorkshopBusinessLogic.BusinessLogics
 {
-    public class ClientLogic : IClientLogic
+	public class ClientLogic : IClientLogic
     {
         private readonly ILogger _logger;
         private readonly IClientStorage _clientStorage;
@@ -100,11 +101,11 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
             if (string.IsNullOrEmpty(Model.ClientFIO))
                 throw new ArgumentNullException("Нет ФИО клиента", nameof(Model.ClientFIO));
             
-            if (string.IsNullOrEmpty(Model.Email))
-                throw new ArgumentNullException("Нет Email клиента", nameof(Model.ClientFIO));
+            if (string.IsNullOrEmpty(Model.Email) || !Regex.IsMatch(Model.Email, @"^[a-z0-9._%+-]+\@([a-z0-9-]+\.)+[a-z]{2,4}$"))
+                throw new ArgumentNullException("Почта не соответствует требованиям", nameof(Model.Email));
 
-            if (string.IsNullOrEmpty(Model.Password))
-                throw new ArgumentNullException("Нет пароля клиента", nameof(Model.ClientFIO));
+            if (string.IsNullOrEmpty(Model.Password) || !Regex.IsMatch(Model.Password, @"^(?=.*[A-Za-z])(?=.*\d)(?=.*[^A-Za-z0-9\n]).{10,50}$"))
+                throw new ArgumentNullException("Пароль не соответствует требованиям", nameof(Model.Password));
 
             _logger.LogInformation("Client. ClientFIO: {ClientFIO}." +
                 "Email: {Email}. Password: {Password}. Id: {Id} ", Model.ClientFIO, Model.Email, Model.Password, Model.Id);
diff --git a/AutoWorkshopBusinessLogic/BusinessLogics/MessageInfoLogic.cs b/AutoWorkshopBusinessLogic/BusinessLogics/MessageInfoLogic.cs
index c19898a..1da4d6a 100644
--- a/AutoWorkshopBusinessLogic/BusinessLogics/MessageInfoLogic.cs
+++ b/AutoWorkshopBusinessLogic/BusinessLogics/MessageInfoLogic.cs
@@ -23,14 +23,63 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
 
 		public List<MessageInfoViewModel>? ReadList(MessageInfoSearchModel? Model)
 		{
-			// TODO
-			return new();
+			_logger.LogDebug("ReadList. MessageId: {MessageId}, ClientId: {ClientId}", Model?.MessageId, Model?.ClientId);
+
+			var Result = Model == null ? _messageInfoStorage.GetFullList() : _messageInfoStorage.GetFilteredList(Model);
+
+			_logger.LogDebug("ReadList result. Count: {Count}", Result.Count);
+			return Result;
 		}
 
 		public bool Create(MessageInfoBindingModel Model)
 		{
-			// TODO
-			return false;
+			CheckModel(Model);
+			
+			if (_messageInfoStorage.Insert(Model) == null)
+			{
+				_logger.LogWarning("Insert operation failed");
+				return false;
+			}
+			
+			return true;
+		}
+
+		private void CheckModel(MessageInfoBindingModel Model, bool WithParams = true)
+		{
+			if (Model == null)
+				throw new ArgumentNullException(nameof(Model));
+
+			if (!WithParams)
+				return;
+
+			if (string.IsNullOrEmpty(Model.MessageId))
+				throw new ArgumentNullException("Не указан id сообщения", nameof(Model.MessageId));
+
+			if (string.IsNullOrEmpty(Model.SenderName))
+				throw new ArgumentNullException("Не указао почта", nameof(Model.SenderName));
+
+			if (string.IsNullOrEmpty(Model.Subject))
+				throw new ArgumentNullException("Не указана тема", nameof(Model.Subject));
+
+			if (string.IsNullOrEmpty(Model.Body))
+				throw new ArgumentNullException("Не указан текст сообщения", nameof(Model.Subject));
+
+			_logger.LogInformation("MessageInfo. MessageId: {MessageId}. SenderName: {SenderName}. Subject: {Subject}. Body: {Body}", 
+				Model.MessageId, Model.SenderName, Model.Subject, Model.Body);
+			
+			var Element = _clientStorage.GetElement(new ClientSearchModel
+			{
+				Email = Model.SenderName
+			});
+			
+			if (Element == null)
+			{
+				_logger.LogWarning("Не удалось найти клиента, отправившего письмо с адреса {Email}", Model.SenderName);
+			}
+			else
+			{
+				Model.ClientId = Element.Id;
+			}
 		}
 	}
 }
diff --git a/AutoWorkshopBusinessLogic/BusinessLogics/OrderLogic.cs b/AutoWorkshopBusinessLogic/BusinessLogics/OrderLogic.cs
index 4bb3da8..31264cf 100644
--- a/AutoWorkshopBusinessLogic/BusinessLogics/OrderLogic.cs
+++ b/AutoWorkshopBusinessLogic/BusinessLogics/OrderLogic.cs
@@ -1,4 +1,5 @@
-using AutoWorkshopContracts.BindingModels;
+using AutoWorkshopBusinessLogic.MailWorker;
+using AutoWorkshopContracts.BindingModels;
 using AutoWorkshopContracts.BusinessLogicContracts;
 using AutoWorkshopContracts.SearchModels;
 using AutoWorkshopContracts.StoragesContracts;
@@ -8,18 +9,21 @@ using Microsoft.Extensions.Logging;
 
 namespace AutoWorkshopBusinessLogic.BusinessLogics
 {
-    public class OrderLogic : IOrderLogic
+	public class OrderLogic : IOrderLogic
     {
         private readonly ILogger _logger;
 
         private readonly IOrderStorage _orderStorage;
 
+        private readonly AbstractMailWorker _mailLogic;
+
         static readonly object _locker = new object();
 
-        public OrderLogic(ILogger<RepairLogic> Logger, IOrderStorage OrderStorage)
+        public OrderLogic(ILogger<RepairLogic> Logger, IOrderStorage OrderStorage, AbstractMailWorker MailLogic)
         {
             _logger = Logger;
             _orderStorage = OrderStorage;
+            _mailLogic = MailLogic;
         }
 
         public List<OrderViewModel>? ReadList(OrderSearchModel? Model)
@@ -36,6 +40,7 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
             _logger.LogInformation("ReadList. Count: {Count}", List.Count);
             return List;
         }
+        
         public bool CreateOrder(OrderBindingModel Model)
         {
             CheckModel(Model);
@@ -48,23 +53,30 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
 
             Model.Status = OrderStatus.Accepted;
 
-            if (_orderStorage.Insert(Model) is null)
+            var CreatedOrder = _orderStorage.Insert(Model);
+
+			if (CreatedOrder == null)
             {
                 _logger.LogWarning("Insert operation failed");
                 return false;
             }
 
-            return true;
-        }
+			Task.Run(() => _mailLogic.SendMailAsync(new MailSendInfoBindingModel
+			{
+				MailAddress = CreatedOrder.ClientEmail,
+				Subject = $"Изменение статуса заказа номер {CreatedOrder.Id}",
+				Text = $"Ваш заказ номер {CreatedOrder.Id} на ремонт {CreatedOrder.RepairName} от {CreatedOrder.DateCreate} на сумму {CreatedOrder.Sum} принят."
+			}));
 
+			return true;
+		}
+		
         private bool ChangeOrderStatus(OrderBindingModel Model, OrderStatus NewStatus)
-        {
-            CheckModel(Model, false);
-
-            var Order = _orderStorage.GetElement(new OrderSearchModel { Id = Model.Id });
-            
-            if (Order == null)
-            {
+		{
+			CheckModel(Model, false);
+			var Order = _orderStorage.GetElement(new OrderSearchModel { Id = Model.Id });
+			if (Order == null)
+			{
                 _logger.LogWarning("Change status operation failed. Order not found");
                 return false;
             }
@@ -92,10 +104,19 @@ namespace AutoWorkshopBusinessLogic.BusinessLogics
             if (_orderStorage.Update(Model) == null)
             {
                 _logger.LogWarning("Change status operation failed");
-                return false;
-            }
+				return false;
+			}
 
-            return true;
+            // TODO: check order ClientEmail
+			string DateInfo = Model.DateImplement.HasValue ? $"Дата выполнения {Model.DateImplement}" : "";
+			Task.Run(() => _mailLogic.SendMailAsync(new MailSendInfoBindingModel
+			{
+				MailAddress = Order.ClientEmail,
+				Subject = $"Изменение статуса заказа номер {Order.Id}",
+				Text = $"Ваш заказ номер {Order.Id} на ремонт {Order.RepairName} от {Order.DateCreate} на сумму {Order.Sum} {Order.Status}. {DateInfo}"
+			}));
+
+			return true;
         }
 
         public bool TakeOrderInWork(OrderBindingModel Model)