[英]Asp.net sending email
How can I send an activation email when new users register in my website using asp.net c#? 当新用户使用asp.net c#在我的网站中注册时,如何发送激活电子邮件? I have tried the steps described this link but I have faced this error:
我尝试了描述此链接的步骤,但遇到了此错误:
System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.
System.IO.IOException:无法从传输连接中读取数据:net_io_connectionclosed。
Is there any solution to this or any other way to send an email? 有没有解决此问题的方法或其他任何发送电子邮件的方法?
this is my code 这是我的代码
using (MailMessage mm = new MailMessage("sender@gmail.com", txtEmail.Text))
{
mm.Subject = "Account Activation";
string body = "Hello " + txtUsername.Text.Trim() + ",";
body += "<br /><br />Please click the following link to activate your account";
body += "<br /><a href = '" + Request.Url.AbsoluteUri.Replace("CS.aspx", "CS_Activation.aspx?ActivationCode=" + activationCode) + "'>Click here to activate your account.</a>";
body += "<br /><br />Thanks";
mm.Body = body;
mm.IsBodyHtml = true;
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.EnableSsl = true;
NetworkCredential NetworkCred = new NetworkCredential("sender@gmail.com", "<password>");
smtp.UseDefaultCredentials = true;
smtp.Credentials = NetworkCred;
smtp.Port = 587;
smtp.Send(mm);
}
The proposed duplicate did not solve the problem. 建议的副本无法解决问题。 I am already using port 587.
我已经在使用端口587。
See the code below: 请参见下面的代码:
public static class email_utility
{
public static async Task<bool> send_email(this string body, string subject, string email, int try_count)
{
return await Task.Run(() =>
{
var cli = new SmtpClient();
using (var message = new MailMessage(config.sender_email, email))
{
message.Subject = subject;
message.SubjectEncoding = UTF8Encoding.UTF8;
message.Body = body;
message.BodyEncoding = UTF8Encoding.UTF8;
message.DeliveryNotificationOptions = DeliveryNotificationOptions.Never;
for (var count = 0; count < try_count; ++count)
{
try
{
lock (config.sender_email)
{
cli.Send(message);
return true;
}
}
catch (SmtpFailedRecipientsException)
{
return false;
}
catch (SmtpException)
{
Thread.Sleep(config.send_timeout);
}
}
return false;
}
});
}
}
Try this, it works perfectly and you only have to change the fields that are before the var smtp = newSMTPCient. 尝试此操作,它可以完美运行,您只需要更改var smtp = newSMTPCient之前的字段即可。
using System.Net;
using System.Net.Mail;
var fromAddress = new MailAddress("from@gmail.com", "From Name");
var toAddress = new MailAddress("to@example.com", "To Name");
const string fromPassword = "fromPassword";
const string subject = "Subject";
const string body = "Body";
var smtp = new SmtpClient
{
Host = "smtp.gmail.com",
Port = 587,
EnableSsl = true,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new NetworkCredential(fromAddress.Address, fromPassword)
};
using (var message = new MailMessage(fromAddress, toAddress)
{
Subject = subject,
Body = body
})
{
smtp.Send(message);
}
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