bool _submitMessage(int recipientIndex, MailTask mailTask)
{
if (!_trafficController.PrepareIncreaseConnection())
{
_trafficController.Rollback();
return(false);
}
if (!_trafficController.PrepareIncreaseMessage())
{
_trafficController.Rollback();
return(false);
}
SendMailThreadState state = new SendMailThreadState();
state.Server = mailTask.BuildServer();
state.Mail = mailTask.BuildMail();
state.Mail.TextBody = state.Mail.TextBody.Replace("[$sender]", state.Mail.From.ToString());
state.Mail.TextBody = state.Mail.TextBody.Replace("[$rcpt]", state.Mail.To.ToString());
state.Mail.TextBody = state.Mail.TextBody.Replace("[$subject]", state.Mail.Subject.ToString());
// even you can add different attachment for different recipient here.
state.RecipientIndex = recipientIndex;
try
{
Interlocked.Increment(ref _threadCounter);
ThreadPool.QueueUserWorkItem(this._sendThreadProc, state);
_trafficController.Commit();
return(true);
}
catch
{
Interlocked.Decrement(ref _threadCounter);
_trafficController.Rollback();
return(false);
}
}
void _sendThreadProc(object state)
{
SendMailThreadState threadState = (SendMailThreadState)state;
int recipientIndex = threadState.RecipientIndex;
RecipientStatus status = new RecipientStatus();
status.RecipientIndex = recipientIndex;
status.Recipient = threadState.Mail.To.ToString();
try
{
SmtpClient smtp = new SmtpClient();
smtp.Tag = status;
// Catching the following events is not necessary,
// just make the application more user friendly.
// If you use the object in asp.net/windows service or non-gui application,
// You need not to catch the following events.
// To learn more detail, please refer to the code in EASendMail EventHandler region
smtp.OnIdle += new SmtpClient.OnIdleEventHandler(OnIdle);
smtp.OnAuthorized += new SmtpClient.OnAuthorizedEventHandler(OnAuthorized);
smtp.OnConnected += new SmtpClient.OnConnectedEventHandler(OnConnected);
smtp.OnSecuring += new SmtpClient.OnSecuringEventHandler(OnSecuring);
smtp.OnSendingDataStream += new SmtpClient.OnSendingDataStreamEventHandler(OnSendingDataStream);
status.Status = "Connecting server ...";
_updateRecipientStatus(status);
smtp.SendMail(threadState.Server, threadState.Mail);
status.Status = "Succeeded";
status.Completed = true;
_updateRecipientStatus(status);
_updateResultCounter(true);
if (UpdateResult != null)
{
string recipientAddress = (threadState.Mail.To[0] as MailAddress).Address;
UpdateResult(threadState.DbTaskId, true, recipientAddress, "Completed");
}
}
catch (Exception ep)
{
status.Status = ep.Message;
status.HasError = true;
status.Completed = true;
_updateRecipientStatus(status);
_updateResultCounter(false);
if (UpdateResult != null)
{
string recipientAddress = (threadState.Mail.To[0] as MailAddress).Address;
UpdateResult(threadState.DbTaskId, false, recipientAddress, ep.Message);
}
}
finally
{
Interlocked.Decrement(ref _threadCounter);
_trafficController.DecreaseConnection();
}
}