méthode smtp.send jette exception

Question

J'utilise la version .net 3.5 pour l'envoi de mails si mon application web

Je reçois l'erreur suivante:

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Client was not authenticated

Ce qui pourrait être la cause?

Answer 1

Source d'ici http://www.systemnetmail.com/faq/4.2.aspx

//create the mail message 
MailMessage mail = new MailMessage(); 

//set the addresses 
mail.From = new MailAddress("me@mycompany.com"); 
mail.To.Add("you@yourcompany.com"); 

//set the content 
mail.Subject = "This is an email"; 
mail.Body = "this is the body content of the email."; 

//send the message 
SmtpClient smtp = new SmtpClient("127.0.0.1"); 

//to authenticate we set the username and password properites on the SmtpClient 
smtp.Credentials = new NetworkCredential("username", "secret"); 
smtp.Send(mail); 

EDIT: Cette erreur signifie ce qu'il est écrit: serveur smtp a besoin d'informations d'authentification (nom d'utilisateur et mot de passe). Donc, vous devez définir SmtpClient.Credentials.

Answer 2

Essayez:

smtpclient.EnableSsl = true; 

Answer 3

The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Client was not authenticated

donc vous devez vous authentifier en ajoutant des informations d'identification

smtpClient.Credentials = new NetworkCredential("username", "password");