How can I send email from if SMTP Authentication is required for your mail Server?

Our SMTP Server requires authentication before you can send email,
If your ASP or script is located on our Web Server, you don't need any SMTP Authentication to send email.

Below is the code examples

using System.Web.Mail;

private void SendEmail(String from,String to,String body,String subject) {
    MailMessage m = new MailMessage();
    m.To = to;
    m.From = from;
    m.Body = body;
    m.Subject = subject;
SmtpMail.SmtpServer = "";


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