OpenPop library how to use TLS

Question

I need to enable tls protocol on openpop library (TLS v.1.2 or TLS v.1.1 ) how to ?

I tried the following code but it did not work:

using (Pop3Client client = new Pop3Client())
{
    client.Connect("my_hostname", 25, false);
}

https://www.nuget.org/packages/OpenPop.NET

Answer 1

According the documentation available here: http://hpop.sourceforge.net/documentation/index.html

The class Pop3client has a connect method with a "useSsl" parameter:

public void Connect(
   string hostname,
   int port,
   bool useSsl
);

Try to connect using the right port and set this parameter as true:

using (Pop3Client client = new Pop3Client())
{
    client.Connect("your_hostname", 995, true);
}

This should validate the server certificate automatically, if you want to do this manually or if you are using a self-signed certificate you can create your own certificate validator:

private static bool certificateValidator(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslpolicyerrors)
{
    return true;
}

using (Pop3Client client = new Pop3Client())
{
    client.Connect("your_hostname", 995, true, 3000, 3000, certificateValidator);
}

More info here: http://hpop.sourceforge.net/exampleOverrideSSL.php