asp.net - 无法在 asp.net 2 层应用程序中发送电子邮件

Question

当我尝试发送邮件时出现此错误

SMTP 服务器需要安全连接或客户端未通过身份验证。服务器响应为：5.5.1 需要身份验证。了解更多信息

这是我的代码：

   MailMessage mail = new MailMessage();
   SmtpClient SmtpServer = new SmtpClient(MySMTPClient);

   mail.From = new MailAddress(MySendingAddress);
   mail.To.Add(recieverAddress);
   mail.Subject = subject;
   mail.Body = content;

   SmtpServer.Port = MyPort;
   SmtpServer.Credentials = new System.Net.NetworkCredential(MySendingAddress, MyPassword);//(MySendingAddress, MyPassword);
   SmtpServer.EnableSsl = true;
   SmtpServer.UseDefaultCredentials = false;
   SmtpServer.Send(mail);

Answer 1

试试这个代码来邮寄：

MailMessage mail = new MailMessage();
SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com");
mail.From = new MailAddress(Username);
mail.To.Add(emailTo);
mail.Subject = Subject;
mail.Body = Body;

SmtpServer.Port = 587; // Also Add the port number to send it, its default for Gmail
SmtpServer.Credentials = new System.Net.NetworkCredential(Username, Password);
SmtpServer.EnableSsl = true;
SmtpServer.Timeout = 20000; // Add Timeout property, it is optional part
SmtpServer.Send(mail);

让我知道它是否有效。