problem sending emamil across one postfix server

Hello i want from one php page to send emails but i have one great problem.
The server is one postfix into one suse and the php pages are into the same
server with apache 2 and php 5.
it doesn't sent the messages and into the email server logs appears this:
Jan 3 16:28:55 server postfix/pickup[18946]: 7F6C978557: uid=30
from=<wwwrun>
Jan 3 16:28:55 server postfix/cleanup[18976]: 7F6C978557:
message-id=<20080103152855.7F6C978557@server.MI_DOMINIO.or g>
Jan 3 16:28:55 server postfix/qmgr[18947]: 7F6C978557:
from=<wwwrun@server.MI_DOMINIO.org>, size=722, nrcpt=1 (queue active)
Jan 3 16:28:55 server postfix/qmgr[18947]: 7F6C978557:
to=<infocuenta@server.MI_DOMINIO.org>, orig_to=<info@cuenta.com>,
relay=none, delay=0, status=deferred (delivery temporarily suspended:
transport is unavailable)

My emamils from the php page i send using this:

/* recipients */
$to = "info@MI_DOMINIO.com"; //$nombre . " <" . $email. ">";
/* subject */
$subject = "Email desde la pagina web";
/* message */
$message = "
<html>
<head>
</head>
<body>
Has recibido este correo desde el formulario de la pagina web.

Nombre: $nombre 
Email: $email 
Asunto del mensaje: $asunto

</body>
</html>
";

/* To send HTML mail, you can set the Content-type header. */
$headers = "MIME-Version: 1.0\r\n";
$headers .= "Content-type: text/html; charset=iso-8859-1\r\n";

/* additional headers */
$headers .= "From: " . $nombre . " <" . $email. ">";

/* and now mail it */
mail($to, $subject, $message, $headers);
?>

but it doesn't send

Can you help me?
thanks

You probably need to set a custom From header entry

--
Jim Lucas

"Some men are born to greatness, some achieve greatness,
and some have greatness thrust upon them."

Twelfth Night, Act II, Scene V
by William Shakespeare

But how can i make it?
thanks, a lot of thanks
----- Original Message -----
From: "Jim Lucas" <lists@cmsws.com>
To: "Miren Urkixo" <miren@tinieblas.com>
Cc: <php-general@lists.php.net>
Sent: Saturday, January 05, 2008 12:08 AM
Subject: Re: [php] problem sending emamil across one postfix server

Now i have chage the php scripts with the bellow script but appears the
bellow error.

Can anybody helps me please. I don't know how can i solve mi proble for
sending emails using php againts one postfix into one SuSE linux.

Thnaks

//script
<?php
$para = 'miname@midomain.com';
$asunto = 'el asunto';
$mensaje = 'hola carabola';
$cabeceras = 'From: miname <miname@midomain.com>' . "\n" .
'Reply-To: miname@midomain.com' . "\n" .
'X-Mailer: PHP/' . phpversion()."\n";

mail($para, $asunto, $mensaje, $cabeceras, '-fminame@midomain.com');
?>

//log
Jan 5 13:52:02 server postfix/pickup[16768]: 20EB589B68: uid=30
from=<miname@midomain.com>
Jan 5 13:52:02 server postfix/cleanup[17322]: 20EB589B68:
message-id=<20080105125202.20EB589B68@server.midomain.com>
Jan 5 13:52:02 server postfix/qmgr[7450]: 20EB589B68:
from=<miname@midomain.com>, size=394, nrcpt=1 (queue active)
Jan 5 13:52:02 server postfix/qmgr[7450]: 20EB589B68:
to=<miname@server.midomain.com>, orig_to=<miname@midomain.com>, relay=none,
delay=0, status=deferred (delivery temporarily suspended: transport is
unavailable)

----- Original Message -----
From: "Jim Lucas" <lists@cmsws.com>
To: "Miren Urkixo" <miren@tinieblas.com>
Cc: <php-general@lists.php.net>
Sent: Saturday, January 05, 2008 12:08 AM
Subject: Re: [php] problem sending emamil across one postfix server

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2 8th November 07:30 lists External User Posts: 1	problem sending emamil across one postfix server You probably need to set a custom From header entry -- Jim Lucas "Some men are born to greatness, some achieve greatness, and some have greatness thrust upon them." Twelfth Night, Act II, Scene V by William Shakespeare

3 8th November 07:30 miren External User Posts: 1	problem sending emamil across one postfix server But how can i make it? thanks, a lot of thanks ----- Original Message ----- From: "Jim Lucas" <lists@cmsws.com> To: "Miren Urkixo" <miren@tinieblas.com> Cc: <php-general@lists.php.net> Sent: Saturday, January 05, 2008 12:08 AM Subject: Re: [php] problem sending emamil across one postfix server