elmah - cannot email exceptions
<elmah>
  <errorMail
    from="myusername@gmail.com"
    to="me@myemail.com"
    subject="elmah exception"
    async="true"
    smtpPort="0"
    useSsl="true" />
</elmah>
<system.net>
  <mailSettings>
    <smtp deliveryMethod ="Network">
      <network
        host="smtp.gmail.com"
        port="587"
        userName="myusername@gmail.com"
        password="..." />
    </smtp>
  </mailSettings>
</system.net>
<httpModules>
  <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah"/>
  <add name="ErrorMail" type="Elmah.ErrorMailModule, Elmah" />
</httpModules>

MailMessage mailObj = new MailMessage();
  mailObj.Subject = "gmail test";
  mailObj.From = new System.Net.Mail.MailAddress("myusername@gmail.com");
  mailObj.To.Add("test@myemail.com.au");
  mailObj.Body = "Test Email";

  SmtpClient smtpClient = new SmtpClient("smtp.gmail.com");
  NetworkCredential basicCredential = new NetworkCredential("myusername@gmail.com", "mypassword");
  smtpClient.UseDefaultCredentials = false;
  smtpClient.Credentials = basicCredential;
  smtpClient.Port = 587;
  smtpClient.EnableSsl = true;
  smtpClient.Send(mailObj);