Hey everyone! Got a little problem...with CentOS / BQ / PHP 4.3.9 with the mail() function I'm able to send mail using postfix directly from the command line, however when I try using the mail function of php no mail is being sent. This simple script works on all my older Cobalt Boxs. <? if($action=="send") { $to = 'me at domain.dot'; $subject = 'the subject'; $message = 'hello'; $headers = 'From: me at domain.dot' . "\r\n" . 'Reply-To: me at domain.dot' . "\r\n" . 'X-Mailer: PHP/' . phpversion(); mail($to, $subject, $message, $headers); ?> the queue looks like this.... Jun 14 11:47:45 bq0 sendmail[19390]: j5EFljEU019390: from=<>, size=1146, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] Jun 14 11:47:45 bq0 sendmail[19389]: j5EFljk1019389: j5EFljk2019389: return to sender: User unknown Jun 14 11:47:45 bq0 sendmail[19390]: j5EFljEW019390: from=<>, size=3858, class=0, nrcpts=1, msgid=<200506141547.j5EFljk2019389 at bq.ontarioservers.com>, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] Jun 14 11:47:45 bq0 sendmail[19389]: j5EFljk2019389: to=postmaster, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=32170, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (j5EFljEW019390 Message accepted for delivery) Jun 14 11:47:45 bq0 sendmail[19391]: j5EFljEW019390: to=admin, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=34070, dsn=2.0.0, stat=Sent I did a some googling and found a post http://forums.fedoraforum.org/showthread.php?t=27608 Any sujestons as what I should do .....I dont want to play with another script to get this done??....thanks in advance -- Best Regards, Jon McCauley