public void Send(MailMessage Message, Sender From, IEnumerable <Recipient> To)
{
foreach (var recipient in To)
{
Send(Message, From, recipient);
}
}
public async Task SendAsync(MailMessage Message, Sender From, Recipient To)
{
using (var server = new SmtpClient(_Host, _Port)
{
EnableSsl = _UseSsl
})
{
server.Credentials = new NetworkCredential(_Login, _Password);
using (var msg = new System.Net.Mail.MailMessage())
{
msg.From = new MailAddress(From.Address, From.Name);
msg.To.Add(new MailAddress(To.Address, To.Name));
await server.SendMailAsync(msg);
}
}
}
public void SendParallel(MailMessage Message, Sender From, IEnumerable <Recipient> To)
{
//foreach (var recipient in To)
//{
// var current_recipient = recipient; // опасность замыкания!
// new Thread(() => Send(Message, From, current_recipient))
// {
// Name = $"Поток отправки почты от {From.Name} к {recipient.Name}",
// Priority = ThreadPriority.BelowNormal,
// IsBackground = true
// }.Start();
//}
foreach (var recipient in To)
{
Debug.WriteLine($"Отправка почты {recipient.Name} : {recipient.Address}");
var current_recipient = recipient;
ThreadPool.QueueUserWorkItem(p => Send(Message, From, current_recipient));
}
}
public async Task SendAsync(
MailMessage Message,
Sender From, IEnumerable <Recipient> To,
IProgress <double> Progress = null,
CancellationToken Cancel = default)
{
#region Параллельный асинхронный процесс
//await Task.WhenAll(To.Select(to => SendAsync(Message, From, to)));
#endregion
#region Последовательный асинхронный процесс
var to = To.ToArray();
for (var i = 0; i < to.Length; i++)
{
Cancel.ThrowIfCancellationRequested();
await SendAsync(Message, From, to[i]);
Progress?.Report((double)i / to.Length);
}
Progress?.Report(1);
#endregion
}