public bool Handle(TransportMessage transportMessage)
{
var sendEmail = MessageSerializer.DeserializeMessage(transportMessage);
using (var smtpClient = SmtpBuilder.BuildClient())
using (var mailMessage = sendEmail.ToMailMessage())
{
AddAttachments(sendEmail, mailMessage);
try
{
smtpClient.Send(mailMessage);
CleanAttachments(sendEmail);
}
catch (SmtpFailedRecipientsException ex)
{
//TODO: should put some delay in here to back off from an overloaded smtp server
var originalRecipientCount = mailMessage.To.Count + mailMessage.Bcc.Count + mailMessage.CC.Count;
if (ex.InnerExceptions.Length == originalRecipientCount)
{
//All messages failed. So safe to throw and cause a re-handle of the message
throw;
}
var timeSent = TimeSent(transportMessage);
foreach (var newMessage in RetryMessageBuilder.GetMessagesToRetry(sendEmail, timeSent, ex))
{
Bus.Send(InputAddress, newMessage);
}
}
}
return(true);
}
public async Task OnMessageReceived(IBuilder builder, MessageContext messageContext)
{
if (dispatchMessages == null)
{
dispatchMessages = builder.Build <IDispatchMessages>();
}
var sendEmail = serializer.DeserializeMessage(messageContext);
using (var smtpClient = buildSmtpClient())
using (var mailMessage = sendEmail.ToMailMessage())
{
await AddAttachments(sendEmail, mailMessage);
try
{
await smtpClient.SendMailAsync(mailMessage)
.ConfigureAwait(false);
await CleanAttachments(sendEmail)
.ConfigureAwait(false);
}
catch (SmtpFailedRecipientsException exception)
{
//TODO: should put some delay in here to back off from an overloaded smtp server
var originalRecipientCount = mailMessage.To.Count + mailMessage.Bcc.Count + mailMessage.CC.Count;
if (exception.InnerExceptions.Length == originalRecipientCount)
{
//All messages failed. So safe to throw and cause a re-handle of the message
throw;
}
var timeSent = TimeSent(messageContext);
var retries = RetryMessageBuilder.GetMessagesToRetry(sendEmail, timeSent, exception)
.Select(newMessage => DispatchMailMessage(messageContext, newMessage));
await Task.WhenAll(retries);
}
}
}