private async Task SubmitBounceMessageAsync(Message message, IEnumerable<DeliveryResult> failedRecipients)
{
if (string.IsNullOrWhiteSpace(message.From))
return;
if (IsMailerDaemonAddress(message.From))
return;
// TODO: Dont' hardcode this.
string bounceMessage = string.Format(@"Your message did not reach some or all of the intended recipients.
Sent: %MACRO_SENT%
Subject: %MACRO_SUBJECT%
The following recipient(s)could not be reached:
%MACRO_RECIPIENTS%
hMailServer");
throw new NotImplementedException();
}