"Connection was closed by the remote connection end." unable to connect to gmx.net on .NET Compact Framework error

Question

Smtp smtp = new Smtp();
smtp.Connect("smtp.gmx.net", 587, SslMode.Explicit);

// etc
smtp.Disconnect();

Answer 1

Smtp smtp = new Smtp();

smtp.Settings.SslAllowedSuites =  
TlsCipherSuite.RSA_WITH_3DES_EDE_CBC_SHA |
TlsCipherSuite.RSA_WITH_AES_128_CBC_SHA |
TlsCipherSuite.RSA_WITH_AES_256_CBC_SHA;

smtp.Connect("smtp.gmx.net", 587, SslMode.Explicit);

// etc

smtp.Disconnect();