I was using PHP 5.2.6 with the ISAPI DLL and recently changed the configuration to use PHP 5.2.9-2 with FastCGI. This is all on IIS 6 on Windows Server 2003 (SBS). I am using a fake sendmail from Byron Jones to allow me to use thePHP mail() function (see my article on it here: http://dpotter.net/Technical...