NOVEMBER 2018, have tried everything above with no success.
Below is the solution that worked finally. Unfortunately it's not using SSL, but it works!!!
var fromAddress = new MailAddress([email protected], "From Name");
var toAddress = new MailAddress("[email protected]", "To Name");
const string subject = "Subject";
const string body = "Body";
var smtp = new SmtpClient
{
Host = "aspmx.l.google.com",
Port = 25,
EnableSsl = false
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
smtp.Send(message);
}