System.Net.Sockets.SocketException: Запрошенное имя верно, но данные запрошенного типа не найдены

good afternoon. I have a license dated 10/06/2015 for the PROF version. For a week now, neither sending nor receiving mail to third-party services has been working. Program comment: 13:06:46 [IMAP] MailExceptions.ConnectionException: Failed to connect to the server. —> System.Net.Sockets.SocketException: The requested name is valid, but data of the requested type was not found.
All logins and passwords are verified and OUTLOOK sends and receives mail from the same computer