Hi, I'm trying to send e-mail with SmtpMail class and getting security exception: Request for the permission of type 'System.Net.Mail.SmtpPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. The same situation while trying to access another web site (RSS feed) via WebClient. The exception is thrown: Request for the permission of type 'System.Net.WebPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Is it Winhost security limitations or some settings can be adjusted to allow this functionality? SourceCode for e-mail sending (executed on a separate thread): //prepare E-mail client SmtpClient client = new SmtpClient(); client.UseDefaultCredentials = false; client.Host = "smtp.gmail.com"; client.Port = 587; client.EnableSsl = true; client.Credentials = new NetworkCredential(settings.EmailAccount, settings.EmailPassword); var message = new MailMessage(settings.EmailAccount, to, subject, settings.MessageBody); client.Send(message); Thanks