/// <summary>
/// SendMail
/// </summary>
/// <param name="smtpServer">The SMTP server</param>
public SendMail(SmtpServer smtpServer)
{
if (String.IsNullOrEmpty(smtpServer.Host))
{
throw new ArgumentException("smtpServer.Host");
}
smtpClient = new SmtpClient(smtpServer.Host, smtpServer.Port);
try
{
smtpClient.UseDefaultCredentials = !smtpServer.RequiresAuthentication;
smtpClient.Credentials = smtpServer.RequiresAuthentication ?
new NetworkCredential(smtpServer.Username, smtpServer.Password) :
CredentialCache.DefaultNetworkCredentials;
}
catch
{
smtpClient.UseDefaultCredentials = true;
smtpClient.Credentials = CredentialCache.DefaultNetworkCredentials;
}
smtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
smtpClient.EnableSsl = smtpServer.Ssl;
smtpClient.SendCompleted += SendCompletedCallback;
ForceSmtpAuthentication = true;
SmtpAuthentication = smtpServer.SmtpAuthentication;
Arguments = null;
}
public SmtpServer(string host, int port = 25, bool ssl = false, string username = null, string password = null,
SmtpAuthentication smtpAuthentication = SmtpAuthentication.Digest)
{
Host = host;
Port = port;
Ssl = ssl;
Username = username;
Password = password;
RequiresAuthentication = (username != null) || (password != null);
SmtpAuthentication = smtpAuthentication;
}
/// <summary>
/// SendMail
/// </summary>
/// <param name="base64">Base64 encoder</param>
/// <param name="smtpServer">The SMTP server</param>
public SendMail(IBase64 base64, SmtpServer smtpServer)
{
this.base64 = base64;
CheckParameter(smtpServer.Host, String.Concat(nameof(smtpServer), ".", nameof(smtpServer.Host)));
smtpClient = new SmtpClient(smtpServer.Host, smtpServer.Port)
{
DeliveryMethod = SmtpDeliveryMethod.Network,
EnableSsl = smtpServer.Ssl
};
smtpClient.SendCompleted += SendCompletedCallback;
smtpClient.UseDefaultCredentials = !smtpServer.RequiresAuthentication;
smtpClient.Credentials = smtpServer.RequiresAuthentication
? new NetworkCredential(smtpServer.Username, smtpServer.Password)
: CredentialCache.DefaultNetworkCredentials;
ForceSmtpAuthentication = true;
SmtpAuthentication = SmtpAuthentication.Digest;
Arguments = null;
}
public static void ForceSmtpAuthentication(this SmtpClient smtpClient, SmtpAuthentication smtpAuthentication)
{
var transport = smtpClient.GetType().GetField("transport", BindingFlags.NonPublic | BindingFlags.Instance);
if (transport != null)
{
var authenticationModules = transport.GetValue(smtpClient).GetType().GetField("authenticationModules", BindingFlags.NonPublic | BindingFlags.Instance);
if (authenticationModules != null)
{
var modulesArray = authenticationModules.GetValue(transport.GetValue(smtpClient)) as Array;
if (modulesArray != null)
{
var smtpAuthenticationModule = modulesArray.GetValue((byte)smtpAuthentication);
modulesArray.SetValue(smtpAuthenticationModule, 0);
modulesArray.SetValue(smtpAuthenticationModule, 1);
modulesArray.SetValue(smtpAuthenticationModule, 2);
modulesArray.SetValue(smtpAuthenticationModule, 3);
}
}
}
}
