More on PHP 4.0 Bug #6742 Updated: mail function fails

I have made some progress regarding my reported problem/bug. http://bugs.php.net/?id=6742 The problem as reported occurs on a W2K server machine if I run php.exe < mailtest.php OR open mailtest.php within PHPEd and run from there. However, so I have just discovered, if I load this script as a web page in a browser, it runs OK !! Can anyone explain why this script may work via a web browser but not via PHPEd or the command line? All other scripts that I have written in PHP work all ways and this mailtest one DOES work all ways on NT - not on W2K server though. I'd be grateful for any ideas or if anyone else running a W2K server could confirm this for me. The following works OK via a web page but not via the command line: <? echo "Doing mail\n" mail("L.S.Davis@ex.ac.uk", "Hello", "Message\n",""); ?> The failure gives output: Doing mail <br> <b>Warning</b>: Unknown error in <b>E:mailtest.PHP</b> on line <b>3</b><br> I have tried all sorts, including all suggested variations on the last header parameter, various combinations of quotes etc Thanks Lee ======================================================================== Lee Davis, IT Services, University of Exeter Email: L.S.Davis@exeter.ac.uk Tel: +44-(0)1392-263960 Fax: +44-(0)1392-211630 WWW: http://www.exeter.ac.uk/ Post: Laver Building, North Park Road, Exeter, Devon, EX4 4QE, UK. ======================================================================== Lee ======================================================================== Lee Davis, IT Services, University of Exeter Email: L.S.Davis@exeter.ac.uk Tel: +44-(0)1392-263960 Fax: +44-(0)1392-211630 WWW: http://www.exeter.ac.uk/ Post: Laver Building, North Park Road, Exeter, Devon, EX4 4QE, UK. ========================================================================