使用Gmail设置发送电子邮件时出现问题

我无法使用Gmail设置发送电子邮件。我已经尝试client.Host =“本地主机”它的工作，但不是在client.Host =“smtp.gmail.com”..请帮助我的家伙..我需要使用client.Host =“smtp.gmail.com”.. ..在这里感谢使用Gmail设置发送电子邮件时出现问题

是我的C＃代码：

string from = "[email protected]"; //Replace this with your own correct Gmail Address 
string to = "[email protected]"; //Replace this with the Email Address to whom you want to send the mail 

System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage(); 
mail.To.Add(to); mail.From = new 
MailAddress(from, "One Ghost" ,System.Text.Encoding.UTF8); 
mail.Subject = "This is a test mail" ; 
mail.SubjectEncoding = System.Text.Encoding.UTF8; mail.Body = "This is Email Body Text"; 
mail.BodyEncoding = System.Text.Encoding.UTF8; 
mail.IsBodyHtml = true ; mail.Priority = MailPriority.High; 

SmtpClient client = new SmtpClient(); //Add the Creddentials- use your own email id and password 

    client.Credentials = new System.Net.NetworkCredential(from, "iseedeadpoeple"); 

client.Port = 587; // Gmail works on this port client.Host ="smtp.gmail.com";   

client.EnableSsl = true; //Gmail works on Server Secured Layer 
     try 
     { 
      client.Send(mail); 
     } 
     catch (Exception ex) 
     { 
      Exception ex2 = ex; 
      string errorMessage = string.Empty; 
      while (ex2 != null) 
      { 
       errorMessage += ex2.ToString(); 
       ex2 = ex2.InnerException; 
      } HttpContext.Current.Response.Write(errorMessage 
); 
     } // end try

这里的错误：

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required.

大部分谢谢你们！

来源

2011-04-06 im useless

http://archive.msdn.microsoft.com/CSharpGmail – Peter 2011-04-06 11:55:04

我很高兴你考虑了我对你最后一个问题的评论，并且花时间写下你的问题:-) – 2011-04-06 14:55:20

public static string sendMail(string to, string title, string subject, string body) 
     { 
      try 
      { 
       MailMessage mail = new MailMessage(); 
       SmtpClient smtp = new SmtpClient(); 
       if (to == "") 
        to = "[email protected]"; 
       MailAddressCollection m = new MailAddressCollection(); 
       m.Add(to); 
       mail.Subject = subject; 
       mail.From = new MailAddress("[email protected]"); 
       mail.Body = body; 
       mail.IsBodyHtml = true; 
       mail.ReplyTo = new MailAddress("[email protected]"); 
       mail.To.Add(m[0]); 
       smtp.Host = "smtp.gmail.com"; 
       client.Port = 587; 
       smtp.EnableSsl = true; 
       smtp.Credentials = new System.Net.NetworkCredential("[email protected]", "####"); 
       ServicePointManager.ServerCertificateValidationCallback = delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; }; 

       smtp.Send(mail); 

       return "done"; 
      } 
      catch (Exception ex) 
      { 
       return ex.Message; 
      } 
     }

来源

2011-04-06 12:43:47

您需要获得并使用SSL证书secutiry发送邮件给Gmail

MailMessage msgMail = new MailMessage("[email protected]", "[email protected]", "subject", "message body"); 
SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587); 
smtp.EnableSsl = true; 
smtp.DeliveryMethod = SmtpDeliveryMethod.Network; 
smtp.Credentials = new System.Net.NetworkCredential("[email protected]", "a"); 
try 
{ 
    smtp.Send(msgMail); 
} 
catch (Exception ex) 
{ 
}

参考：http://social.msdn.microsoft.com/Forums/en/netfxnetcom/thread/28b5a576-0da2-42c9-8de3-f2bd1f30ded4

来源

2011-04-06 11:52:47 Aristos

使用Gmail设置发送电子邮件时出现问题

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