PHP 4.0 Bug #2065: mail() function doesn't do anything

From: admin@airliners.net Operating system: Linux 3.0.36 PHP version: 4.0 Beta 2 PHP Bug Type: Misbehaving function Bug description: mail() function doesn't do anything <? mail("you@whereever.com", "Some topic", "Hello...1,2,3 testing"); ?> It doesn't send out any e-mail, no idea why. It works just great with the 3.0.* versions of php but not with 4.0 beta 1 or beta 2. Surely this must be a well used function and such an obvious error must have been spotted long time ago...right? Fact remains that my scripts work with php 3 but not php 4. I have not changed the php.ini file and my setup is normal (the configuration is --with-mysql=/usr/local/mysql --with-apache=../apache_1.3.6 --enable-track-vars --disable-magic-quotes --disable-debug )