public async Task SendAsync(MailMessageDTO message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
// Get MIME message
var msg = message.ToMimeMessage();
// Send message
using (var mx = new SmtpClient())
{
await mx.ConnectAsync(this.HostName, this.Port, AllowSsl?SecureSocketOptions.Auto : SecureSocketOptions.None);
if (AllowSsl)
{
mx.ServerCertificateValidationCallback = this.ServerCertificateValidationCallback;
}
if (!string.IsNullOrEmpty(this.UserName) && !string.IsNullOrEmpty(this.Password))
{
await mx.AuthenticateAsync(this.UserName, this.Password);
}
await mx.SendAsync(msg);
await mx.DisconnectAsync(true);
}
}
public async Task SendAsync(MailMessageDTO message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
// Convert to message
var msg = message.ToMimeMessage();
// Write to temp file to avoid pickup of incomplete message
var tempFileName = Path.GetTempFileName();
using (var sw = File.CreateText(tempFileName))
{
// Write envelope sender
await sw.WriteLineAsync($"X-Sender: <{message.From.Address}>");
// Write envelope receivers
var receivers = message.To
.Union(message.Cc)
.Union(message.Bcc);
foreach (var item in receivers.Select(x => x.Address))
{
await sw.WriteLineAsync($"X-Receiver: <{item}>");
}
// Flush data and write rest of message
await sw.FlushAsync();
msg.WriteTo(sw.BaseStream);
}
var msgFileName = Path.Combine(FolderName, string.Join(".", DateTime.Now.ToString("yyyyMMdd-HHmmss"), Guid.NewGuid().ToString("N"), "eml"));
// Create final directory if not exists
if (!Directory.Exists(FolderName))
{
Directory.CreateDirectory(FolderName);
}
// Move the file to final destination
File.Move(tempFileName, msgFileName);
}
