Using XAMPP with PHP 4 under Leopard. Newest XAMPP (0.7.2). Have Postfix mail server running to forward outgoing e-mail to my ISP.
The PHP mail() function works correctly -- the mail gets sent. But the function always returns with "false" indicating that the mail was not sent.
The same PHP application has worked correctly, for years, under Windows and other Unix systems running other versions of Apache and other mail servers. There is something peculiar to this combination of XAMPP, Leopard, Postfix.
I've explored all sorts of news groups and forums, have posted this query to Postfix and PHP forums with no response. There must be a parameter, either in PHP.ini or Postfix main.cf, or ??? that isn't set correctly. I found a (very old) reference in a forum to a similar problem caused by "enable-sigchild" option being wrong when PHP was built, but I've got to believe that the XAMPP build of PHP is correct or else there would be a lot of people raising questions.
Can anyone give me advice? Thanks!