我正在使用本地主机通过SES发送批量邮件。很多人都回答了这个问题,但没有一个解决方案能帮助我。问题是我可以在出现上述错误后一次发送100/150封邮件。我尝试按照一些人的建议处理客户端,但没有工作。我正在使用C#代码执行此操作。任何答案/建议都非常感谢。以下是我用于使用for循环发送批量邮件的代码。你可能认为它可能是一个限制问题,不是因为我们每天有70封电子邮件/秒和500000封电子邮件。
Parallel.For(0, mail.Count, i =>
{
// Replace with your "From" address. This address must be verified.
String TO = mail; // Replace with a "To" address. If your account is still in the
// sandbox, this address must be verified.
// Create an SMTP client with the specified host name and port.
using (System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient(HOST, PORT))
{
// Create a network credential with your SMTP user name and password.
client.Credentials = new System.Net.NetworkCredential(SMTP_USERNAME, SMTP_PASSWORD);
//Use SSL when accessing Amazon SES. The SMTP session will begin on an unencrypted connection, and then
//the client will issue a STARTTLS command to upgrade to an encrypted connection using SSL.
client.EnableSsl = true;
System.Net.Mail.MailMessage message1 = new System.Net.Mail.MailMessage(FROM, TO, SUBJECT, BODY);
message1.IsBodyHtml = true;
client.Send(message1);
client.Dispose();
}
});
答案 0 :(得分:0)
我不知道它现在正在工作的确切原因,但它正在发挥作用。我改变了上面代码的逻辑,它开始工作了。为了每次都发送每封邮件,这次我只取了一次smtp连接并用它一次发送所有批量邮件而不是每次都提取SMTP连接而是开始工作。但问题是发送时间,它是花太多钱发送所有的邮件。无论如何我也会找到解决方案。
using (System.Net.Mail.SmtpClient client = new System.Net.Mail.SmtpClient(HOST, PORT))
{
client.Credentials = new System.Net.NetworkCredential(SMTP_USERNAME, SMTP_PASSWORD);
client.EnableSsl = true;
for(i=0;i<mail.Count;i++)
{
String TO = mail[i];
System.Net.Mail.MailMessage message1 = new System.Net.Mail.MailMessage(FROM, TO, SUBJECT, BODY);
message1.IsBodyHtml = true;
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.Send(message1);
}
client.Dispose();
}
Label1.Text = mail.Count.ToString() + " mails sent !!";