Mine is working for my forgot password. Here is from my controller:

using (var smtp = new SmtpClient())
            {
                var credential = new NetworkCredential
                {
                    UserName = "XXXXX",  // replace with valid value
                    Password = "XXXXX"  // replace with valid value
                };
                smtp.Credentials = credential;
                smtp.Host = "smtp.sendgrid.net";
                smtp.Port = 587;
                smtp.EnableSsl = true;
                smtp.Send(message);
                return true;
            }

And this in my web.config

 <system.net>
    <mailSettings>
      <smtp from="[email protected]">
        <network host="smtp.sendgrid.net" userName="XXXXX" password="XXXXX" />
      </smtp>
    </mailSettings>
  </system.net>

Thanks Mark! I've tried this setup (among a lot of others), but to no avail. I suspect something might be off with the sendgrid-account I'm using.

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