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 MailMessageFactoryTests()
{
_factory = new MailMessageFactory();
_smtpServerConfig = SmtpServerConfigFake.Generate();
var from = _faker.Internet.Email();
var to = new List <string>()
{
_faker.Internet.Email()
};
_emailMessage = new EmailMessage(from, to, "subject", "body");
_request = new MailMessageCreateRequest()
{
EmailMessage = _emailMessage,
SmtpServerConfig = _smtpServerConfig,
IsReadSenderFromConfig = false,
};
}