SMTP authentication is required' When IIS configured to send via localhost

Hi All,

I am using the attached mailing script and configured IIS for this domain to use localhost to send email but still get the error:

The SMTP server requires a secure connection or the client was not authenticated. The server response was: SMTP authentication is required.

Now I don't know if this error is caused by my code or whether its an IIS settign that I have overklooked.

Could you provide any suggestions?

Thanks,

Rit

WEB.CONFIG
<system.net>
        <mailSettings>
            <smtp deliveryMethod="Network">
                <network host="127.0.0.1" port="25" defaultCredentials="false" />
            </smtp>


EMAIL FUNCTION


public static void SendHTMLMessage(string strEmailTemplate, string strSubject, string strFromAddress, string strFromAlias, string strToAddress)
    {
        SmtpClient mySmtpClient = new SmtpClient();
        MailAddress from = new MailAddress(strFromAddress, strFromAlias);
        MailAddress to = new MailAddress(strToAddress);
        MailMessage message = new MailMessage(from, to);
        message.BodyEncoding = Encoding.ASCII;
        message.IsBodyHtml = true;
        message.Subject = strSubject;
        message.Body = strEmailTemplate;
        mySmtpClient.Send(message);
    }

        </mailSettings>
    </system.net>

Select allOpen in new window