private async Task <IOutcome> SendOverMultipleSmtpServersAsync(EmailMessage message)
{
var errors = new List <string>();
var smtpServerConfigurations = _mailSettingsConfig.Smtp.Servers;
var wasSentSuccessfully = false;
foreach (var smtpServerConfiguration in smtpServerConfigurations)
{
try
{
if (wasSentSuccessfully)
{
continue;
}
var createRequest = new MailMessageCreateRequest()
{
EmailMessage = message,
SmtpServerConfig = smtpServerConfiguration,
IsReadSenderFromConfig = true,
RequiredRecipients = _mailSettingsConfig.Smtp.RequiredRecipients,
};
var mailMessage = await _mailMessageFactory.CreateAsync(createRequest);
using (var smtpClient = _smtpClientFactory.Create(smtpServerConfiguration))
{
await smtpClient.SendAsync(mailMessage);
wasSentSuccessfully = true;
}
}
catch (Exception ex)
{
wasSentSuccessfully = false;
var error = ex.Message;
if (ex.InnerException != null)
{
var innerEx = ex.InnerException;
while (innerEx.InnerException != null)
{
innerEx = innerEx.InnerException;
}
error = innerEx.Message;
}
errors.Add($"SMTP {smtpServerConfiguration.Host} throw an error: {error}");
}
}
if (wasSentSuccessfully)
{
return(Outcomes.Success());
}
return(Outcomes.Failure().WithMessagesFrom(errors.Distinct()));
}
public async Task StartAsync(CancellationToken cancellationToken)
{
_logger.LogTrace("Starting send email...");
var emailMessage = await _emailMessageFactory.CreateAsync(null);
var sendResult = await _notificator.NotifyAsync(emailMessage);
_logger.LogInformation($"Email sent result:\n\n{sendResult}");
}
public async Task SendAsync(IMessage message)
{
IPreparedMessage preparedMessage = await _messageFactory.CreateAsync(message);
_pendingMessageContainer.Add(preparedMessage);
}
