can't send mail!

[email protected] ("Aaron Paxson") Wed, 31 Jul 2002 13:57:39 -0500
Newsgroups php.lang
Organization Teters Floral Products
Message-ID <[email protected]>
I am currently using PHP 4.2.2 with Apache 1.3 on RedHat 7.2.  My email
server is Exchange 5.5sp3

SMTP is set correctly in my php.ini file, and have restarted Apache.
However, I still cannot send out a simple text email:

<?php mail("[email protected]","Test","This is a test message"); ?>

The function returns true, but no delivery is made.  In looking in my
Exchange Queues, I do not see any sign of an email going through.  However,
using an email client in KDE, email is sent just fine through SMTP.  Did I
miss something?

Aaron