public bool Authenticate(SmtpLogin login)
{
bool fAuthenticated = false;
Send("EHLO " + System.Net.Dns.GetHostName(), true);
Send("EHLO " + System.Net.Dns.GetHostName(), true);
if (IsResponseCode("250"))
{
Send("AUTH LOGIN", true);
if (IsResponseCode("334"))
{
string username = Convert.ToBase64String(System.Text.Encoding.Unicode.GetBytes(login.Username));
string password = Convert.ToBase64String(System.Text.Encoding.Unicode.GetBytes(login.Password));
Send(username, true);
Send(password, true);
if (IsResponseCode("235"))
{
// TODO send a test mail through these credentials to verify it's correctness. This can be a false-positive aswell.
fAuthenticated = true;
}
}
Send("close", true);
}
return(fAuthenticated);
}
static void Main(string[] args)
{
SmtpHost host = new SmtpHost()
{
Host = "smtp.somesite.com",
Port = 25
};
SmtpLogin credentials = new SmtpLogin()
{
Username = "******",
Password = "******"
};
using (SmtpSocket auth = new SmtpSocket(host))
{
auth.Connect();
if (auth.Authenticate(credentials))
{
Console.WriteLine("Logged in");
}
else
{
Console.WriteLine("Failed");
}
}
Console.WriteLine(" == Program Executed == ");
Console.ReadLine();
}
