Sending email to address not set

Question

I have this code

 var mail = new MailMessage(
                "from@from.com",
                "to@to.com",
                "subject",
                "body");
 mail.ReplyToList.Add(new MailAddress("from@from.com"));

 var client = new SmtpClient();

 client.Send(mail);

In my web.config file I have

<system.net>
    <mailSettings>
      <smtp from="no-reply@no-reply.com">
        <network host="smtp.live.com" password="mypassword" port="587" userName="myemailaddress@hotmail.com" enableSsl="true" />
      </smtp>
    </mailSettings>
  </system.net>

The problem is this: The to address of the email that gets sent to to@to.com is not from@from.com but instead is myemailaddress@hotmail.com. When I hit reply to the email address then because I have this line:

mail.ReplyToList.Add(new MailAddress("from@from.com"));

The reply to email address does get set to from@from.com.

What I want is:

1. The reply to email address to be from@from.com (as it is now)
2. The to email address to be from@from.com as well.

Right now, it seems to anyone receiving the email that the email has come from myemailaddress@hotmail.com. I thought that the configuration in the web.config that I added was only for authenticating against the smtp.live.com mail server and that the email address wouldn't be used in the email being sent.

What am I doing wrong?

Answer 1

Here is a guide you can use to set up your own SMTP server. Assuming you own "from.com" this will resolve your issue.

Have a look at the MSDN Documentation

If you need to send email from many different domains you can configure virtual SMTP servers for each domain. Have a look at this article.

If you do not own the domains that you are attempting to send mail from then it will look like you are spoofing the sender address.