title: FTP Connection issue- using FluentFTP for port 990 -TLS
body: <p>I am trying download file through FTPS connection with port 990 (TLS) using FluentFTP.</p>
  
  <p>But the code is not able to establish connection and showing exception as "The remote certificate is invalid according to the validation procedure."</p>
  
  <p>The FTP server is connecting properly when I use FileZilla FTP tool manually (showing as it is connected through ftps over TLS (Implicit)</p>
  
  <pre><code>FtpClient fclient = new FtpClient(hostname, username, password); 
  fclient.EncryptionMode = FtpEncryptionMode.Implicit;
  fclient.SslProtocols = SslProtocols.Tls12; //Also tried with TLS1 and TLS
  fclient.Port = 990;          
  fclient.Connect();
  </code></pre>