mail() is not supported in this PHP build

From:	Admin	Date:	Fri, 28 Sep 2001 23:32:34 +0000
Subject:	mail() is not supported in this PHP build
Groups:	php.install
Request:	Send a blank email to php-install+get-4432@lists.php.net to get a copy of this message

The subject says it all -- phpinfo shows the path to sendmail as:

sendmail_path    -t -i

After manually editing php3.ini and changing the sendmail_path to /usr/sbin/sendmail -t -i, then restarting Apache, phpinfo still shows the path to sendmail as

sendmail_path     -t -i

Any suggestions on how to fix this?