[英]Authentication Error in C# Send Mail App
I'm developing a simple send mail app in C#, using my CMail Server: 我正在使用CMail Server在C#中开发一个简单的发送邮件应用程序:
MailMessage mail = new MailMessage("from@mail.com", "destination@mail.com");
mail.Subject = "Sub";
mail.Body = "Hi!";
SmtpClient smtp = new SmtpClient("MyServer");
System.Net.NetworkCredential cred = new System.Net.NetworkCredential("user", "pass");
smtp.UseDefaultCredentials = false;
smtp.Credentials = cred;
smtp.Send(mail);
Obviously i ommited my account information, so, this code throws me an Authentication Exception for some reason. 显然,我忽略了我的帐户信息,因此,出于某些原因,此代码引发了身份验证异常。 I first thought that the code was wrong, so i change the info to my gmail account and everything goes fine, with the only SMTP server that i having trouble is with the CMail. 我首先以为代码是错误的,所以我将信息更改为我的gmail帐户,然后一切正常,只有我遇到问题的唯一SMTP服务器与CMail有关。 Is there a problem with .NET and CMail's SMTP ? .NET和CMail的SMTP是否有问题?
Thanks for the help and comments! 感谢您的帮助和评论!
如果您使用的是两步验证,则需要添加应用程序专用密码。
尝试添加:
smtp.EnableSsl = true;
Full work sample 完整的工作样本
public static void sendEmail()
{
//for use GMAIL require enable -
//https://myaccount.google.com/lesssecureapps?rfn=27&rfnc=1&eid=39511352899709300&et=0&asae=2&pli=1
Console.WriteLine("START MAIL SENDER");
//Авторизация на SMTP сервере
SmtpClient Smtp = new SmtpClient("smtp.gmail.com", 587);
Smtp.EnableSsl = true;
Smtp.DeliveryMethod = SmtpDeliveryMethod.Network;
Smtp.UseDefaultCredentials = false;
//username password
Smtp.Credentials = new NetworkCredential("rere", "rere");
//Формирование письма
MailMessage Message = new MailMessage();
Message.From = new MailAddress("rere@gmail.com");
Message.To.Add(new MailAddress("rere@gmail.com"));
Message.Subject = "test mesage";
Message.Body = "tttt body";
string file = "D:\\0.txt";
if (file != "")
{
Attachment attach = new Attachment(file, MediaTypeNames.Application.Octet);
ContentDisposition disposition = attach.ContentDisposition;
disposition.CreationDate = System.IO.File.GetCreationTime(file);
disposition.ModificationDate = System.IO.File.GetLastWriteTime(file);
disposition.ReadDate = System.IO.File.GetLastAccessTime(file);
Message.Attachments.Add(attach);
Console.WriteLine("ADD FILE [" + file + "]");
}
try
{
Smtp.Send(Message);
MessageBox.Show("SUCCESS");
}
catch { MessageBox.Show("WRONG"); }
}
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