public async Task <SmtpResult> SendAsync(MimeMessage mimeMessage, CancellationToken cancellationToken)
{
var result = new SmtpResult();
var settings = _smtpOptions.Value;
var disposableBag = new DisposableBag();
var logStream = disposableBag.Create <MemoryStream>();
var host = settings.Host;
var port = settings.Port;
var useSsl = settings.UseSSL;
var userName = settings.UserName;
var password = settings.Password;
try
{
// make sure there is a from address
if (mimeMessage.From.Count == 0)
{
mimeMessage.From.Add(new MailboxAddress(settings.FromName, settings.FromAddress));
}
var logger = disposableBag.Create(() => new ProtocolLogger(logStream));
var client = disposableBag.Create(() => new SmtpClient(logger));
// accept all SSL certificates
client.ServerCertificateValidationCallback = (s, c, h, e) => true;
await client.ConnectAsync(host, port, useSsl, cancellationToken).ConfigureAwait(false);
// fix gmail issues
client.AuthenticationMechanisms.Remove("XOAUTH2");
if (userName.HasValue() || password.HasValue())
{
await client.AuthenticateAsync(userName, password, cancellationToken).ConfigureAwait(false);
}
await client.SendAsync(mimeMessage, cancellationToken).ConfigureAwait(false);
await client.DisconnectAsync(true, cancellationToken).ConfigureAwait(false);
result.Successful = true;
}
catch (Exception ex)
{
result.Successful = false;
result.Exception = ex;
}
finally
{
logStream.Position = 0;
var reader = disposableBag.Create(() => new StreamReader(logStream));
result.SmtpLog = await reader
.ReadToEndAsync()
.ConfigureAwait(false);
disposableBag.Dispose();
LogResult(mimeMessage, result, host);
}
return(result);
}