Question

I am using asp.net 3.5 and C#.

I want to send mail from asp.net, for that I have got some details from my hosting provider

which are these:

• mail.MySite.net
• UserName
• Password

But I am unable to send mail through these details, I have done the following changes in my web.config file:

<system.net>
    <mailSettings>
        <smtp>
            <network
                 host="mail.MySite.net"
                 port="8080"
                 userName="UserName"
                 password="Password" />
        </smtp>
    </mailSettings>
</system.net>

Also, at the code behind I am writing this function:

MailMessage mail = new MailMessage("[e-mail]", "[e-mail]");
mail.Subject = "Hi";
mail.Body = "Test Mail from ASP.NET";
mail.IsBodyHtml = false;

SmtpClient smp = new SmtpClient();
smp.Send(mail);

but I am getting error message as message sending failed.

Please let me know what I am doing wrong and what I have to do to make it work fine.

Thanks in advance.

Answer 1

Do you need to provide the client credentials?

smp.Credentials = CredentialCache.DefaultNetworkCredentials;

or

smp.Credentials = new NetworkCredential("yourUserID", "yourPassword", "yourDomainName");

Also, the exact exception you are getting would be useful.

See a post by Scott Guthrie for more help.