PHP 4.0 Bug #7637: Mail() fails in mod_php, not in standalone php

From: martin@douda.net Operating system: RH Linux 6.2, kernel2.2.17+reiserfs PHP version: 4.0.3pl1 PHP Bug Type: Mail related Bug description: Mail() fails in mod_php, not in standalone php I have this test script: <? $res=Mail("martin@douda.net","test","just a test"); printf("%d",$res); ?> If I run this script in standalone php, it sends a mail to me as expected, but if I run this via apache module mod_php, the function mail() fails (returns 0). Even when error_reporting is set to 15, it does not report any error. Both standalone and moduled phps are using same configuration file. I have tested sendmail_path="/usr/sbin/sendmail -t" and not setting sendmail_path at all, both showing same behavior. And of course, I've restarted apache each time I've changed php configuration. I have tried replacing sendmail binary with my test script, which have shown that sendmail is not run at all for some reason. My php configuration: ;; EXTENSION LOADING extension_dir = /usr/lib/php4 ;; Global PHP defaults warn_plus_overloading = On ; warn if the operator is used with strings track_errors = On ; Store the last error/warning message in $php_errormsg (boolean) track_vars = On ; enable the $HTTP_*_VARS[] arrays, where * is one of magic_quotes_gpc = On ; magic quotes for incoming GET/POST/Cookie data ; many people think that the system is a pain in the ; a**, but it probably does represent a security ; feature for in-experienced PHP developers. Turn it ; off if you don't want PHP to mess with your incoming ; variables. include_path = ".:/usr/share/php" session.save_path = "/var/state/php" extension=mysql.so error_reporting = 15 display_errors = Off error_log = syslog log_errors = On sendmail_path = "/usr/sbin/sendmail -t" And compile-time configuration: Configure Command './configure' '--prefix=/usr' '--with-apxs' '--libdir=/usr/lib/php4' '--includedir=/usr/include' '--datadir=/usr/share/php' '--with-config-file-path=/etc' '--enable-inline-optimization' '--enable-magic-quotes' '--enable-track-vars' '--enable-memory-limit' '--enable-wddx' '--enable-sysvsem=shared' '--enable-sysvshm=shared' '--with-xml' '--with-gd=shared' '--with-ttf' '--enable-ftp' '--with-readline=shared' '--with-mm' '--with-mysql=shared' '--with-ldap=shared' '--with-imap=shared' '--with-zlib' '--with-pgsql=shared' '--with-interbase=shared' '--with-dbase=shared' '--with-gettext=shared' '--with-pspell=shared' '--enable-calendar=shared' '--with-snmp=shared' '--enable-ucd-snmp-hack' '--with-sybase-ct=shared,/usr/freetds' '--with-pdflib=shared' -- Edit Bug report at: http://bugs.php.net/?id=7637&edit=1