diff --git a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs
index cfdf395..0f1ffc3 100644
--- a/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs
+++ b/TravelAgency/TravelAgencyBusinessLogic/BusinessLogics/UserLogic.cs
@@ -1,4 +1,5 @@
 using Microsoft.Extensions.Logging;
+using System.Text.RegularExpressions;
 using TravelAgencyContracts.BindingModels;
 using TravelAgencyContracts.BusinessLogicsContracts;
 using TravelAgencyContracts.SearchModels;
@@ -97,9 +98,9 @@ namespace TravelAgencyBusinessLogic.BusinessLogics
             {
                 throw new ArgumentNullException("Нет ФИО пользователя", nameof(model.UserFIO));
             }
-            if (string.IsNullOrEmpty(model.Email))
+            if (string.IsNullOrEmpty(model.Email) || !Regex.IsMatch(model.Email, @"^[a-z0-9._%+-]+\@([a-z0-9-]+\.)+[a-z]{2,4}$"))
             {
-                throw new ArgumentNullException("Нет логина(почты) пользователя", nameof(model.Email));
+                throw new ArgumentNullException("Некорректно введен логин(почта) пользователя", nameof(model.Email));
             }
             if (string.IsNullOrEmpty(model.PhoneNumber))
             {