Can I change 'from address' in MailMessage

Hi,

I am try to send mail using my application with attachment, disclaimer text (as attachment) and signature. It is working fine.

But when I use a valid credentials in smtpclient, then the From address is set to NetworkCredential objects 1st param (which is an email address).

See my code snippet.

public static string[] TrySendEmail(SecurityContext sc, MessageBase msg)
{
 string messageBody = "mail body ....";
 var mailMessage = new MailMessage
                                      {
                                          Body = messageBody,
                                          IsBodyHtml = true,
                                          Subject = msg.Subject, From = new MailAddress(msg.SenderMailId)  // here is the supplied email address (e.g abc@mymail.com)
                                      };


 AlternateView htmlView = AlternateView.CreateAlternateViewFromString(messageBody, null, "text/html");


// Add some mail signature as attachment
// ...


mailMessage.AlternateViews.Add(htmlView);


foreach (var toId in subscriberEmailId)
                {
                    mailMessage.To.Add(new MailAddress(toId));
                    mailMessage.IsBodyHtml = true;
                    mailMessage.BodyEncoding = Encoding.UTF8;
                }


var client = new SmtpClient();


 client.Host = "host_name;
                    client.EnableSsl = true;
                    client.Port = portNo;
                    client.Credentials = new NetworkCredential(smtp.SmtpUserName, smtp.SmtpPassword);
client.DeliveryMethod = SmtpDeliveryMethod.Network;
client.Send(mailMessage);
}

, which is supplied by user from GUI. Is it possible?