smtp mail in asp .net C#

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HI
I am send the smtp mail in hotmail and rediffmail and get error

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STAR

how to solved this error.....

plz halp me..

Posted 29-Jul-13 21:10pm

Pratyush Tripathi

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ridoy 30-Jul-13 3:16am

you need to provide your code or detail info about your query to get help from us.

2 solutions

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Thomas Daniels · Answer 1 · 2013-07-29T21:16:00

Hi,

There're two possibilities. The first one is that SSL isn't enabled. Add this line:

C#

yourSmtpClient.EnableSsl = true; // if this line is added already, you don't need to add it a second time

The second possibility is that you didn't provide credentials. Add this line:

C#

yourSmtpClient.Credentials = new System.Net.NetworkCredential("yourUsername@example.com", "yourPassword"); // if this line is added already, you don't need to add it a second time

Hope this helps.

Pratyush Tripathi · Answer 2 · 2013-07-29T21:25:00

dear sir

i have this code

C#

MailMessage oMail = new MailMessage();
           oMail.From = new MailAddress("pktripathi1987@gmail.com");
           oMail.To.Add("pktripathi1987@gmail.com");
           oMail.Subject = "Contact Form";
           oMail.Body = body;
           oMail.IsBodyHtml = true;
           oMail.Priority = MailPriority.High;
           SmtpClient SmtpMail = new SmtpClient();
           SmtpMail.Host = "smtp.live.com";
           // SmtpMail.Port = int.Parse(port);
           SmtpMail.EnableSsl = true;
           SmtpMail.DeliveryMethod = SmtpDeliveryMethod.Network;
           SmtpMail.UseDefaultCredentials = false;
           SmtpMail.Credentials = new System.Net.NetworkCredential("Email@hotmail.com", "pass");
           SmtpMail.Send(oMail);
           oMail.Dispose();
           return "1";

but get error

VB

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STAR

smtp mail in asp .net C#

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